Deuteronomy 15:1-2 discusses the release of debts every seven years, which is related to the sabbatical year laws in Leviticus 25:1-4, where the land is to rest every seventh year.
Deuteronomy 15:4 speaks of there being no poor among the Israelites if they obey God's commands, which is echoed in Acts 4:34-35 where the early church shared everything, ensuring no one was in need.
Deuteronomy 15:7-8 commands generosity towards the poor, which is mirrored in 1 John 3:17, emphasizing the importance of helping those in need as a demonstration of God's love.
Deuteronomy 15:12 discusses the release of Hebrew slaves after six years, which is also found in Exodus 21:2, establishing the principle of freedom and renewal.
Deuteronomy 15:15 reminds the Israelites of their deliverance from Egypt as a reason for releasing slaves, similar to Exodus 13:3, which calls them to remember their liberation during the Feast of Unleavened Bread.
Deuteronomy 15:19 commands the consecration of firstborn animals to the Lord, which is also instructed in Exodus 13:12, highlighting the principle of dedicating the first and best to God.