Exodus 13:5
4 On this day, in the month of Abib, you are going out. 5 “When the Lord brings you to the land of the Canaanites, Hittites, Amorites, Hivites, and Jebusites, which he swore to your fathers to give you, a land flowing with milk and honey, then you will keep this ceremony in this month. 6 For seven days you must eat bread made without yeast, and on the seventh day there is to be a festival to the Lord.
Onkelos Exodus 13:5
4 Today you are leaving, in the month of Abib. 5 And it shall be when the Lord brings you into the land of the Canaanites, Hittites, Amorites, Hivites, and Jebusites, which He affirmed to your ancestors to give you, a land flowing with milk and honey, you shall keep this ceremony in this month. 6 For seven days you shall eat unleavened bread, and on the seventh day you shall celebrate a feast to the Lord.
Notes and References
"... Oaths play an important role in the Bible. Taking a false oath or an oath in vain is regarded a serious violation of God's command. Even though an oath is a mere verbal utterance, it involves the creation of a sanctified relationship. Scripture often depicts God as 'swearing an oath.' The Targum generally replaces Scripture's 'took an oath,' as in verse 13:5, with the more respectful 'affirmed,' to avoid the improper and, indeed, impossible notion that God had a physical relationship with the Israelites, appeared before them, and allowed them to extract an oath from him. In verse 13:19, 'extracted an oath' is retained because it concerns an Israelite oath. ..."
Drazin, Israel, and Stanley M. Wagner Onkelos on the Torah, Exodus: Understanding the Bible Text (p. 78) Gefen, 2006