Deuteronomy 10:16

Above all, therefore, they were to circumcise the foreskin of their hearts, i.e., to lay aside all insensibility of heart to impressions from the love of God (cf. Lev 26:41; and on the spiritual signification of circumcision, see Gen 17:15-21), and not stiffen their necks any more, i.e., not persist in their obstinacy, or obstinate resistance to God (cf. Deu 9:6, Deu 9:13). Without circumcision of heart, true fear of God and true love of God are both impossible. As a reason for this admonition, Moses adduces in Deu 10:17. the nature and acts of God. Jehovah as the absolute God and Lord is mighty and terrible towards all, without respect of person, and at the same time a just Judge and loving Protector of the helpless and oppressed. From this it follows that the true God will not tolerate haughtiness and stiffness of neck either towards Himself or towards other men, but will punish it without reserve. To set forth emphatically the infinite greatness and might of God, Moses describes Jehovah the God of Israel as the "God of gods," i.e., the supreme God, the essence of all that is divine, of all divine power and might (cf. Psa 136:2), - and as the "Lord of lords," i.e., the supreme, unrestricted Ruler ("the only Potentate," Ti1 6:15), above all powers in heaven and on earth, "a great King above all gods" (Psa 95:3). Compare Rev 17:14 and Rev 19:16, where these predicates are transferred to the exalted Son of God, as the Judge and Conqueror of all dominions and powers that are hostile to God. The predicates which follow describe the unfolding of the omnipotence of God in the government of the world, in which Jehovah manifests Himself as the great, mighty, and terrible God (Psa 89:8), who does not regard the person (cf. Lev 19:15), or accept presents (cf. Deu 16:19), like a…

Moses having, in the foregoing chapter, reminded them of their own sin, as a reason why they should not depend upon their own righteousness, in this chapter he sets before them God's great mercy to them, notwithstanding their provocations, as a reason why they should be more obedient for the future. I. He mentions divers tokens of God's favour and reconciliation to them, never to be forgotten. (1.) The renewing of the tables of the covenant (Deu 10:1-5). (2.) Giving orders for their progress towards Canaan (Deu 10:6, Deu 10:7). (3.) Choosing the tribe of Levi for his own (Deu 10:8, Deu 10:9). (4.) And continuing the priesthood after the death of Aaron (Deu 10:6). (5.) Owning and accepting the intercession of Moses for them (Deu 10:10, Deu 10:11). II. Hence he infers what obligations they lay under to fear, and love, and serve God, which he presses upon them with many motives (Deu 10:12, etc.).

10:16 change your hearts (literally circumcise the foreskin of your hearts): This figure of speech encompasses both inward and outward conformity to the covenant (Gen 17:9-14; Rom 2:28-29).