Deuteronomy 10:12
10 As for me, I stayed at the mountain as I did the first time, 40 days and nights. The Lord listened to me that time as well and decided not to destroy you. 11 Then he said to me, “Get up, set out leading the people so they may go and possess the land I promised to give to their ancestors.” 12 Now, Israel, what does the Lord your God require of you except to revere him, to obey all his commandments, to love him, to serve him with all your mind and being, 13 and to keep the Lord’s commandments and statutes that I am giving you today for your own good? 14 The heavens—indeed the highest heavens—belong to the Lord your God, as does the earth and everything in it.
Joshua 22:5
3 You have not abandoned your fellow Israelites this entire time, right up to this very day. You have completed the task given you by the Lord your God. 4 Now the Lord your God has made your fellow Israelites secure, just as he promised them. So now you may turn around and go to your homes in your own land that Moses the Lord’s servant assigned to you east of the Jordan. 5 But carefully obey the commands and instructions Moses the Lord’s servant gave you. Love the Lord your God, follow all his instructions, obey his commands, be loyal to him, and serve him with all your heart and being!” 6 Joshua rewarded them and sent them on their way; they returned to their homes. 7 (Now to one half-tribe of Manasseh, Moses had assigned land in Bashan; and to the other half Joshua had assigned land on the west side of the Jordan with their fellow Israelites.) When Joshua sent them home, he rewarded them,
Notes and References
"... The first occurrence of the “with all your heart and soul” formula is in Deuteronomy 4:29, “you will find [the Lord your God] if you search after him with all your heart and soul”. This levav + nefesh formula is not found in the Hebrew Bible prior to Deuteronomy 4:29. Among the nine occurrences of this formula in Deuteronomy, only 6:5 has a third body part, and the protasis of the faith statement varies quite a bit. The formula in Deuteronomy is attached to various calls to faithfulness including three charges to love (אָהַב), two to serve (עבד), one to search (דרשׁ), one to observe (עשׂה), one to obey (שׁמע), and one to turn (שׁוב). Deuteronomy contains one additional use of “heart and soul” in Deuteronomy 11:18, “Put these words of mine in your heart and soul,” which is less so a test of faithfulness. Outside of Deuteronomy, there are just seven instances in the Hebrew Bible of the precise wording of the Deuteronomic formula – two in Joshua, three in Kings and two in Chronicles ... In Joshua 22:5, faithfulness means to serve God “with all your heart and with all your soul ..."
Weaks, Joseph A. "Fearing the Lord God: The Reception of Deuteronomic and Deuteronomistic Torah Tropes in Tobit" in De Troyer, Kristin, et al. (eds.) The Early Reception of the Torah (pp. 81-92) De Gruyter, 2020