They were enabled to buy what they required—For the Lord thy God hath blessed thee in all the works of thy hand; their flocks and herds had increased during their wanderings (Numbers 32:1); and they may have gained wealth by cultivating the soil at places where they had made a lengthened sojourn, or by traffic with the tribes of the desert with whom they came in contact.
Jehovah their God had known—had noted, observed, had regard to, had cared for (setup. Genesis 39:6; Psalms 1:6; Proverbs 27:23)—their walking—their peregrinations—through this great wilderness; he had been their Leader, had chosen for them places to rest in, had provided food for them, and had been their Protector and Guardian all through the forty years of their pilgrimage, so that they had wanted for nothing (Deuteronomy 1:33; Deuteronomy 8:2, Deuteronomy 8:3, Deuteronomy 8:15, Deuteronomy 8:16; comp.
Psalms 23:1-6). "He sufficiently supplied what was needful for thee when thou walkedst through this great wilderness; for these forty years the Word of Jah thy God hath sustained thee; nor hath anything been wanting to thee" (Chaldee Paraphrase).
Forty years (Numbers 14:33). "From the fifteenth day of the first month in which their fathers came out of Egypt (Numbers 33:3), to the tenth day of the same month in which they went over Jordan into Canaan (Joshua 4:19), there were but five days wanting of complete forty years" (Patrick).