11 but the land which you are going over to possess is a land of hills and valleys, which drinks water by the rain from heaven, 12 a land which the Lord your God cares for; the eyes of the Lord your God are always upon it, from the beginning of the year to the end of the year. 13 "And if you will obey my commandments which I command you this day, to love the Lord your God, and to serve him with all your heart and with all your soul, 14 he will give the rain for your land in its season, the early rain and the later rain, that you may gather in your grain and your wine and your oil. 15 And he will give grass in your fields for your cattle, and you shall eat and be full. 16 Take heed lest your heart be deceived, and you turn aside and serve other gods and worship 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.