23 Above all that thou guardest keep thy heart; for out of it are the issues of life.
26 My son, give me thy heart, and let thine eyes observe my ways.
1 My son, forget not my teaching; but let thy heart keep my commandments;
2 For length of days, and years of life, and peace, will they add to thee.
7 My heart is stedfast, O God, my heart is stedfast; I will sing, yea, I will sing praises.
5 And thou shalt love the LORD thy God with all thy heart, and with all thy soul, and with all thy might.
6 And these words, which I command thee this day, shall be upon thy heart;
10 With my whole heart have I sought Thee; O let me not err from Thy commandments.
11 Thy word have I laid up in my heart, that I might not sin against Thee.
10 Create me a clean heart, O God; and renew a stedfast spirit within me.
2 Examine me, O LORD, and try me; test my reins and my heart.
3 For Thy mercy is before mine eyes; and I have walked in Thy truth.
23 Search me, O God, and know my heart, try me, and know my thoughts;
24 And see if there be any way in me that is grievous, and lead me in the way everlasting.
8 This book of the law shall not depart out of thy mouth, but thou shalt meditate therein day and night, that thou mayest observe to do according to all that is written therein; for then thou shalt make thy ways prosperous, and then thou shalt have good success.
3 Thou hast tried my heart, Thou hast visited it in the night; Thou hast tested me, and Thou findest not that I had a thought which should not pass my mouth.
4 As for the doings of men, by the word of Thy lips I have kept me from the ways of the violent.
5 My steps have held fast to Thy paths, my feet have not slipped.
46 he said unto them: 'Set your heart unto all the words wherewith I testify against you this day; that ye may charge your children therewith to observe to do all the words of this law.