מדרש אויף בראשית 30:22

TAANITH (Fol. 2) R. Jochanan said: "Three keys (sources of help) are in the hands of the Holy One, praised be He! which are not intrusted to any agent. They are: [The key] for [help in] confinements, for rain, and for the resurrection of the dead. The key for help in confinements, as it is written (Gen. 30, 22) And God hearkened (Ib. b) to her (Rachel) and opened her womb; that for rain, as it is written (Deut. 28, 12) The Lord will open unto thee His good treasure, the heaven, to give the rain of thy land in its season; and that for the resurrection of the dead, as it is written (Ez. 37, 13) And ye shall know that I am the Lord, when I open your graves and when I cause you to come up out of your graves, O my people. In the West (the land of Israel) it was said: "Also the key of a man's support is in the hands of God Himself, as it is written (Ps. 145, 16) Thou openest Thy hand. etc. Why did not R. Jochanan mention this also? Because R. Jochanan may explain that rain includes the means of maintenance.

And God remembered Rachel (Gen. 30:22). May it please our master to teach us the blessing that is recited upon observing a handsome person? Thus do our masters teach us: Upon observing beautiful creatures or lovely trees, one should recite the blessing: “Blessed be He, who hath made this possible in His world.” No one was more beautiful than Rachel, and because she was beautiful, Jacob was eager to marry her. He sent Rachel many gifts, but Laban gave them to Leah instead. Yet she remained silent.

The Holy One, blessed be He, said: Be assured, in reward for your silence I will remember you, as it is said: And God remembered Rachel (Gen. 30:22).