hidden your word in my heart that I might not sin against you. So also Deuteronomy 6 commands Jewish fathers to have God’s word “upon their hearts” and to “sharpen them” (the literal Hebrew word translated, “impress”): Deuteronomy 6:6-7 - These commandments that I give you today are to be upon your hearts. Impress (lit. “sharpen”) them on your children. Talk about them when you sit at home and when you walk along the road, when you lie down and when you get up. If you read these vital words carefully,