Deuteronomy 4:36-46

36 Out of heaven he made thee to hear his voice, that he might instruct thee: and upon earth he shewed thee his great fire; and thou heardest his words out of the midst of the fire.
37 And because he loved thy fathers, therefore he chose their seed after them, and brought thee out in his sight with his mighty power out of Egypt;
38 To drive out nations from before thee greater and mightier than thou art, to bring thee in, to give thee their land for an inheritance, as it is this day.
39 Know therefore this day, and consider it in thine heart, that the LORD he is God in heaven above, and upon the earth beneath: there is none else.
40 Thou shalt keep therefore his statutes, and his commandments, which I command thee this day, that it may go well with thee, and with thy children after thee, and that thou mayest prolong thy days upon the earth, which the LORD thy God giveth thee, for ever.
41 Then Moses severed three cities on this side Jordan toward the sunrising*;
42 That the slayer might flee thither, which should kill his neighbour unawares*, and hated him not in times past; and that fleeing unto one of these cities he might live:
43 Namely, Bezer in the wilderness, in the plain country, of the Reubenites; and Ramoth in Gilead, of the Gadites; and Golan in Bashan, of the Manassites.
44 And this is the law which Moses set before the children of Israel:
45 These are the testimonies, and the statutes, and the judgments, which Moses spake unto the children of Israel, after they came forth out of Egypt,
46 On this side Jordan, in the valley over against Bethpeor, in the land of Sihon king of the Amorites, who dwelt at Heshbon, whom Moses and the children of Israel smote, after they were come forth out of Egypt:

Deuteronomy 4:36-46 Meaning and Commentary

INTRODUCTION TO DEUTERONOMY 4

This chapter contains an exhortation to Israel to keep the commands, statutes, and judgments of God, urged from the superior excellency of them to those of all other nations, De 4:1-8, from the manner in which they were delivered, out of the midst of fire, by a voice of words, but no similitude seen, De 4:9-15, and particularly the Israelites are cautioned against idolatry, from the consideration of the goodness of God to them, in bringing them out of Egypt, De 4:16-20, and the rather Moses is urgent upon them to be diligent in their obedience to the laws of God, because he should quickly be removed from them, De 4:21-24, and should they be disobedient to them, it would provoke the Lord to destroy them, or to carry them captive into other lands, De 4:25-28 though even then, if they repented and sought the Lord, and became obedient, he would be merciful to them, and not forsake them, De 4:29-31 and they are put in mind again of the amazing things God had done for them, in speaking to them out of fire, and they alive; in bringing them out of another nation, and driving out other nations to make room for them; all which he improves, as so many arguments to move them to obedience to the divine commands, De 4:32-40 and then notice is taken of the three cities of refuge, separated on this side Jordan, De 4:41-43, and the chapter is concluded with observing, that this is the law, and these the testimonies, Moses declared and repeated to the children of Israel in the country of Sihon and Og, who were delivered into their hands, and their lands possessed by them, which laid them under fresh obligations to yield obedience to God, De 4:44-49.

Deuteronomy 4:36-46 In-Context

34 Or hath God assayed to go and take him a nation from the midst of another nation, by temptations, by signs, and by wonders, and by war, and by a mighty hand, and by a stretched out arm, and by great terrors, according to all that the LORD your God did for you in Egypt before your eyes?
35 Unto thee it was shewed, that thou mightest know that the LORD he is God; there is none else beside him.
36 Out of heaven he made thee to hear his voice, that he might instruct thee: and upon earth he shewed thee his great fire; and thou heardest his words out of the midst of the fire.
37 And because he loved thy fathers, therefore he chose their seed after them, and brought thee out in his sight with his mighty power out of Egypt;
38 To drive out nations from before thee greater and mightier than thou art, to bring thee in, to give thee their land for an inheritance, as it is this day.
39 Know therefore this day, and consider it in thine heart, that the LORD he is God in heaven above, and upon the earth beneath: there is none else.
40 Thou shalt keep therefore his statutes, and his commandments, which I command thee this day, that it may go well with thee, and with thy children after thee, and that thou mayest prolong thy days upon the earth, which the LORD thy God giveth thee, for ever.
41 Then Moses severed three cities on this side Jordan toward the sunrising;
42 That the slayer might flee thither, which should kill his neighbour unawares, and hated him not in times past; and that fleeing unto one of these cities he might live:
43 Namely, Bezer in the wilderness, in the plain country, of the Reubenites; and Ramoth in Gilead, of the Gadites; and Golan in Bashan, of the Manassites.
44 And this is the law which Moses set before the children of Israel:
45 These are the testimonies, and the statutes, and the judgments, which Moses spake unto the children of Israel, after they came forth out of Egypt,
46 On this side Jordan, in the valley over against Bethpeor, in the land of Sihon king of the Amorites, who dwelt at Heshbon, whom Moses and the children of Israel smote, after they were come forth out of Egypt:
47 And they possessed his land, and the land of Og king of Bashan, two kings of the Amorites, which were on this side Jordan toward the sunrising;
48 From Aroer, which is by the bank of the river Arnon, even unto mount Sion, which is Hermon,
The King James Version is in the public domain.