11 but the land which you cross over to possess is a land of hills and valleys, which drinks water from the rain of heaven, 12 a land for which the Lord your God cares; the eyes of the Lord your God are always on it, from the beginning of the year to the very end of the year. 13 'And it shall be that if you earnestly obey My commandments which I command you today, to love the Lord your God and serve Him with all your heart and with all your soul, 14 then I will give you the rain for your land in its season, the early rain and the latter rain, that you may gather in your grain, your new wine, and your oil. 15 And I will send grass in your fields for your livestock, that you may eat and be filled.' 16 Take heed to yourselves, 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.