The Christian discipline of committing biblical Scripture to memory for meditation, prayer, encouragement, defense against temptation, and ready availability of the LORD's word. The biblical anchor is established in Deuteronomy 6:6-9 (these words, which I command thee this day, shall be in thine heart: And thou shalt teach them diligently unto thy children, and shalt talk of them...); Psalm 119:11 (Thy word have I hid in mine heart, that I might not sin against thee); Psalm 1:2 (the blessed man's meditation in the law day and night, requiring memorization); Colossians 3:16 (Let the word of Christ dwell in you richly in all wisdom). The Lord Jesus's own use of Scripture in the wilderness temptations (Matthew 4:1-11; Luke 4:1-13) presupposed thorough memorization of substantial OT passages; the early church's catechetical formation involved extensive memorization of Scripture, the Lord's Prayer, the creeds, and the catechism. The Reformed-Puritan tradition treated Scripture memorization as basic to Christian formation, with the Westminster Larger Catechism's exposition of the Ten Commandments and the Shorter Catechism's brief comprehensive doctrine memorized by every covenant child. The patriarchal-Reformed reader recovers Scripture memorization as substantive discipline against the modern reliance on instant digital access: the father commits substantial passages to memory (the Psalms, the Sermon on the Mount, key doctrinal passages, the prophetic-promise passages); he requires his children to memorize substantial passages as part of catechetical formation; the household carries the LORD's word in its collective memory across vocation, travel, conversation, and prayer.