Psalm 119:11
Your word have I hid in my heart, that I might not sin against you.
Topicalbible.org—AKJV

Deuteronomy 11:18
Therefore shall you lay up these my words in your heart and in your soul, and bind them for a sign on your hand, that they may be as frontlets between your eyes.
Topicalbible.org—AKJV