With my lips I recount all the laws that come from your mouth.
— Psalm 119:13
In context of this verse, the psalmist is talking about keeping God’s word in his heart so that he can stay pure and free from sin (see verses 9-16). God’s law acts as a restraint against sin. You will notice in your Christian walk that there are certain things that you would have otherwise done, but you remember that God’s word says not to. At that moment, your actions are constrained by God’s word. The more of God’s word that is in your heart, the more it will constrain your actions. One of the most effective ways of memorization is verbal repetition. The psalmist says “with my lips I recount all the laws that come from your mouth”.
As often as possible, repeat God’s word back to Him. Psalm 119 is a good place to start because it has 176 verses; all but 4 are addressed directly to God. Read God’s word and store it in your heart. Seal it by recounting with your lips the same word.
Heavenly Father, I have hidden your word in my heart that I might not sin against you. Praise be to you, O Lord; teach me your decrees. With my lips I recount all the laws that come from your mouth. In Jesus’ Name I pray, AMEN!