Why does the Lord remind the Israelites of their history?
Leviticus 20:24 (ESV)
24But I have said to you, ‘You shall inherit their land, and I will give it to you to possess, a land flowing with milk and honey.’ I am the LORD your God, who has separated you from the peoples.
The Hebrews are called to obedience. If they do not follow the Lord, they will receive the same penalty as the pagan Canaanites; they will be vomited out (see Leviticus 18:28).
24 But I have said to you, ‘You shall inherit their land, and I will give it to you to possess, a land flowing with milk and honey.’ I am the LORD your God, who has separated you from the peoples.