Deuteronomy 11:13

Being thus wholly dependent on God, it behooved them to be careful to attend to his commandments and to obey them, that so his blessing might be continued to them and to the laud. If they would love and serve the Lord as they were bound to do, he would give them the rain of their land, i . e . rain for their land, such as it required (cf. "rain of thy seed," Psalms 30:2 , Psalms 30:3 ), in the proper season, the early and the latter rain, so that they should fully enjoy the benefits of the land.