7 May the earth yield its produce; may Hashem, our God, bless us.
E-retz na-t’-NAH y’-vu-LAH y’-va-r’-KHAY-nu e-lo-HEEM e-lo-HAY-nu
ז אֶרֶץ נָתְנָה יְבוּלָהּ יְבָרְכֵנוּ אֱלֹהִים אֱלֹהֵינוּ׃
67:7 May the earth yield its produce
The amount of produce that the land of Israel gives is a direct response to the behavior of its inhabitants. Hashem makes this point very clear throughout the Bible, specifically in Sefer Devarim (11:13-15), in which He links the concept of reward and punishment with the successful produce of the land. If the children of God veer from His path and reject Him for idolatry, Divine anger will arise and the land will not give its produce. This reaction is actually a blessing, since the inhabitants of Eretz Yisrael are thereby granted a barometer for their spiritual behavior. If there is famine and drought, they know that Hashem is angry, and they must inspect their actions. If there is plenty, God is happy with His nation and it is appropriate to sing praises to the Lord for His wonderful bounty.