Deuteronomy 10:20
You shall fear the LORD your God. You shall serve him. You shall cling to him, and you shall swear by his name.
World English Bible (Public Domain)
In context
Before · Deuteronomy 10:18–19
18He executes justice for the fatherless and widow and loves the foreigner in giving him food and clothing. 19Therefore love the foreigner, for you were foreigners in the land of Egypt.
20You shall fear the LORD your God. You shall serve him. You shall cling to him, and you shall swear by his name.