Deuteronomy 7:12-15 - Promises Of Good For Covenant Obedience
12 If ye shall hearken unto these laws and shall observe and do them, then shall the LORD thy God keep covenant with thee, and the mercy which he sware unto thy fathers, 13 and will love thee, bless thee and multiply thee: he will bless the fruit of thy womb and the fruit of thy field, thy corn, thy wine and thy oil, the fruit of thine oxen and the flocks of thy sheep in the land which he sware unto thy fathers to give thee. 14 Thou shalt be blessed above all nations; there shall be neither man nor woman unfruitful among you, nor anything unfruitful among your cattle. 15 Moreover, the LORD will turn from thee all manner infirmities, and will put none of the evil diseases of Egypt - which thou knowest - upon thee, but will send them upon them that hate thee.