diff --git a/packages/mermaid/src/diagrams/class/classRenderer.js b/packages/mermaid/src/diagrams/class/classRenderer.js
index 3774f7b8ca..58def16c2a 100644
--- a/packages/mermaid/src/diagrams/class/classRenderer.js
+++ b/packages/mermaid/src/diagrams/class/classRenderer.js
@@ -141,8 +141,6 @@ const insertMarkers = function (elem) {
 export const draw = function (text, id, _version, diagObj) {
   const conf = getConfig().class;
   idCache = {};
-  // diagObj.db.clear();
-  // diagObj.parser.parse(text);
 
   log.info('Rendering diagram ' + text);
 
diff --git a/packages/mermaid/src/diagrams/er/erRenderer.js b/packages/mermaid/src/diagrams/er/erRenderer.js
index 93e22732a1..63fb056339 100644
--- a/packages/mermaid/src/diagrams/er/erRenderer.js
+++ b/packages/mermaid/src/diagrams/er/erRenderer.js
@@ -568,13 +568,6 @@ export const draw = function (text, id, _version, diagObj) {
       : select('body');
   // const doc = securityLevel === 'sandbox' ? sandboxElement.nodes()[0].contentDocument : document;
 
-  // Parse the text to populate erDb
-  // try {
-  //   parser.parse(text);
-  // } catch (err) {
-  //   log.debug('Parsing failed');
-  // }
-
   // Get a reference to the svg node that contains the text
   const svg = root.select(`[id='${id}']`);
 
diff --git a/packages/mermaid/src/diagrams/flowchart/flowRenderer.js b/packages/mermaid/src/diagrams/flowchart/flowRenderer.js
index f69fe93ebc..4382aa9a44 100644
--- a/packages/mermaid/src/diagrams/flowchart/flowRenderer.js
+++ b/packages/mermaid/src/diagrams/flowchart/flowRenderer.js
@@ -306,13 +306,6 @@ export const draw = function (text, id, _version, diagObj) {
       : select('body');
   const doc = securityLevel === 'sandbox' ? sandboxElement.nodes()[0].contentDocument : document;
 
-  // Parse the graph definition
-  try {
-    diagObj.parser.parse(text);
-  } catch (err) {
-    log.debug('Parsing failed');
-  }
-
   // Fetch the default direction, use TD if none was found
   let dir = diagObj.db.getDirection();
   if (dir === undefined) {
diff --git a/packages/mermaid/src/diagrams/gantt/ganttRenderer.js b/packages/mermaid/src/diagrams/gantt/ganttRenderer.js
index ff16fef7c7..215a4df29d 100644
--- a/packages/mermaid/src/diagrams/gantt/ganttRenderer.js
+++ b/packages/mermaid/src/diagrams/gantt/ganttRenderer.js
@@ -59,8 +59,6 @@ let w;
 export const draw = function (text, id, version, diagObj) {
   const conf = getConfig().gantt;
 
-  // diagObj.db.clear();
-  // parser.parse(text);
   const securityLevel = getConfig().securityLevel;
   // Handle root and Document for when rendering in sandbox mode
   let sandboxElement;
diff --git a/packages/mermaid/src/diagrams/git/gitGraphRenderer-old.js b/packages/mermaid/src/diagrams/git/gitGraphRenderer-old.js
index b8cff72ec2..a3b05ad79f 100644
--- a/packages/mermaid/src/diagrams/git/gitGraphRenderer-old.js
+++ b/packages/mermaid/src/diagrams/git/gitGraphRenderer-old.js
@@ -1,7 +1,6 @@
 import { curveBasis, line, select } from 'd3';
 
 import db from './gitGraphAst.js';
-import gitGraphParser from './parser/gitGraph.js';
 import { logger } from '../../logger.js';
 import { interpolateToCurve } from '../../utils.js';
 
@@ -328,13 +327,7 @@ function renderLines(svg, commit, direction, branchColor = 0) {
 
 export const draw = function (txt, id, ver) {
   try {
-    const parser = gitGraphParser.parser;
-    parser.yy = db;
-    parser.yy.clear();
-
     logger.debug('in gitgraph renderer', txt + '\n', 'id:', id, ver);
-    // Parse the graph definition
-    parser.parse(txt + '\n');
 
     config = Object.assign(config, apiConfig, db.getOptions());
     logger.debug('effective options', config);
diff --git a/packages/mermaid/src/diagrams/mindmap/mindmapRenderer.js b/packages/mermaid/src/diagrams/mindmap/mindmapRenderer.js
index 01d675d839..7e741657b9 100644
--- a/packages/mermaid/src/diagrams/mindmap/mindmapRenderer.js
+++ b/packages/mermaid/src/diagrams/mindmap/mindmapRenderer.js
@@ -167,14 +167,8 @@ function positionNodes(cy) {
 export const draw = async (text, id, version, diagObj) => {
   const conf = getConfig();
 
-  // console.log('Config: ', conf);
   conf.htmlLabels = false;
 
-  // This is done only for throwing the error if the text is not valid.
-  diagObj.db.clear();
-  // Parse the graph definition
-  diagObj.parser.parse(text);
-
   log.debug('Rendering mindmap diagram\n' + text, diagObj.parser);
 
   const securityLevel = getConfig().securityLevel;
diff --git a/packages/mermaid/src/diagrams/pie/pieRenderer.js b/packages/mermaid/src/diagrams/pie/pieRenderer.js
index 1ee34e192a..d4242c087a 100644
--- a/packages/mermaid/src/diagrams/pie/pieRenderer.js
+++ b/packages/mermaid/src/diagrams/pie/pieRenderer.js
@@ -33,9 +33,6 @@ export const draw = (txt, id, _version, diagObj) => {
     const doc = securityLevel === 'sandbox' ? sandboxElement.nodes()[0].contentDocument : document;
 
     // Parse the Pie Chart definition
-    diagObj.db.clear();
-    diagObj.parser.parse(txt);
-    log.debug('Parsed info diagram');
     const elem = doc.getElementById(id);
     width = elem.parentElement.offsetWidth;
 
diff --git a/packages/mermaid/src/diagrams/requirement/requirementRenderer.js b/packages/mermaid/src/diagrams/requirement/requirementRenderer.js
index b88f5c2033..49b7828651 100644
--- a/packages/mermaid/src/diagrams/requirement/requirementRenderer.js
+++ b/packages/mermaid/src/diagrams/requirement/requirementRenderer.js
@@ -306,8 +306,6 @@ const elementString = (str) => {
 
 export const draw = (text, id, _version, diagObj) => {
   conf = getConfig().requirement;
-  diagObj.db.clear();
-  diagObj.parser.parse(text);
 
   const securityLevel = conf.securityLevel;
   // Handle root and Document for when rendering in sandbox mode
diff --git a/packages/mermaid/src/diagrams/state/stateRenderer.js b/packages/mermaid/src/diagrams/state/stateRenderer.js
index 74913a748a..689d7a0e52 100644
--- a/packages/mermaid/src/diagrams/state/stateRenderer.js
+++ b/packages/mermaid/src/diagrams/state/stateRenderer.js
@@ -57,8 +57,6 @@ export const draw = function (text, id, _version, diagObj) {
       : select('body');
   const doc = securityLevel === 'sandbox' ? sandboxElement.nodes()[0].contentDocument : document;
 
-  // diagObj.db.clear();
-  // parser.parse(text);
   log.debug('Rendering diagram ' + text);
 
   // Fetch the default direction, use TD if none was found
diff --git a/packages/mermaid/src/diagrams/timeline/timelineRenderer.ts b/packages/mermaid/src/diagrams/timeline/timelineRenderer.ts
index 17460bac2d..d44174fe49 100644
--- a/packages/mermaid/src/diagrams/timeline/timelineRenderer.ts
+++ b/packages/mermaid/src/diagrams/timeline/timelineRenderer.ts
@@ -30,12 +30,6 @@ export const draw = function (text: string, id: string, version: string, diagObj
   // @ts-expect-error - wrong config?
   const LEFT_MARGIN = conf.leftMargin ?? 50;
 
-  //2. Clear the diagram db before parsing
-  diagObj.db.clear?.();
-
-  //3. Parse the diagram text
-  diagObj.parser.parse(text + '\n');
-
   log.debug('timeline', diagObj.db);
 
   const securityLevel = conf.securityLevel;
diff --git a/packages/mermaid/src/diagrams/user-journey/journeyRenderer.ts b/packages/mermaid/src/diagrams/user-journey/journeyRenderer.ts
index 9ea880f691..28c83f19d7 100644
--- a/packages/mermaid/src/diagrams/user-journey/journeyRenderer.ts
+++ b/packages/mermaid/src/diagrams/user-journey/journeyRenderer.ts
@@ -49,8 +49,6 @@ const conf = getConfig().journey;
 const LEFT_MARGIN = conf.leftMargin;
 export const draw = function (text, id, version, diagObj) {
   const conf = getConfig().journey;
-  diagObj.db.clear();
-  diagObj.parser.parse(text + '\n');
 
   const securityLevel = getConfig().securityLevel;
   // Handle root and Document for when rendering in sandbox mode