C. F. Keil and Franz Delitzsch on Deuteronomy 26:16-19

Deu 26:16-19

At the close of his discourse, Moses sums up the whole in the earnest admonition that Israel would give the Lord its God occasion to fulfil the promised glorification of His people, by keeping His commandments with all their heart and soul. Deu 26:16-17

On this day the Lord commanded Israel to keep these laws and rights with all the heart and all the soul (cf. Deu 6:5; Deu 10:12.). There are two important points contained in this (Deu 26:17.). The acceptance of the laws laid before them on the part of the Israelites involved a practical declaration that the nation would accept Jehovah as its God, and walk in His way (Deu 26:17); and the giving of the law on the part of the Lord was a practical confirmation of His promise that Israel should be His people of possession, which He would glorify above all nations (Deu 26:18, Deu 26:19). “Thou hast let the Lord say to-day to be thy God,” i.e., hast given Him occasion to say to thee that He will be thy God, manifest Himself to thee as thy God. “And to walk in His ways, and to keep His laws,” etc., for “and that thou wouldst walk in His ways, and keep His laws.” The acceptance of Jehovah as its God involved eo ipso a willingness to walk in His ways.