11 but the land, whereunto ye are passing over to possess it, is a land of mountains and valleys, which drinketh water of the rain of heaven, 12 a land which Jehovah thy God careth for; the eyes of Jehovah thy God are constantly upon it, from the beginning of the year even unto the end of the year. 13 And it shall come to pass, if ye hearken diligently unto my commandments which I command you this day, to love Jehovah your God, and to serve him with all your heart and with all your soul, 14 that I will give rain to your land in its season, the early rain and the latter rain; and thou shalt gather in thy corn, and thy new wine, and thine oil; 15 and I will give grass in thy field for thy cattle; and thou shalt eat and be full. 16 Take heed to yourselves, that your heart be not deceived, and ye turn aside and serve other gods, and bow down to them,

Matthew Henry's Commentary on Deuteronomy 11:11-16

Commentary on Deuteronomy 11:8-17

(Read Deuteronomy 11:8-17)

Moses sets before them, for the future, life and death, the blessing and the curse, according as they did or did not keep God's commandment. Sin tends to shorten the days of all men, and to shorten the days of a people's prosperity. God will bless them with an abundance of all good things, if they would love him and serve him. Godliness has the promise of the life that now is; but the favour of God shall put gladness into the heart, more than the increase of corn, and wine, and oil. Revolt from God to idols would certainly be their ruin. Take heed that your hearts be not deceived. All who forsake God to set their affection upon any creature, will find themselves wretchedly deceived, to their own destruction; and this will make it worse, that it was for want of taking heed.