The verse "Trust in the Lord with all your heart" is from Proverbs 3:5-6
(NKJV): "Trust in the Lord with all your heart,
And lean not on your own understanding;
In all your ways acknowledge Him,
And He shall direct your paths."
This scripture encourages complete trust and reliance on God rather than one's own understanding. By acknowledging God in every aspect of life, He promises to guide and direct the believer's path. It is a call to total dependence on God and an assurance of His guidance.