Pesukei d’Zimrah: Hodu: Two Worlds

“O give thanks to God, call upon His Name…Sing to Him, sing praises to Him…Seek His face continually (Psalms 105:1,2,4).” Rabbi Yosi bar Chalafta said to his son, Rabbi Yishmael: If you desire to see the Face of the Divine Presence in this world, occupy yourself with Torah in the Land of Israel, for it is said, “Seek God and His strength.”

“Remember His marvelous works that He has done, His wonders, and the judgment of His mouth; O you, seed of Abraham, His servant (verses 5-6).” Rabbi Azariah taught, “In Isaac shall seed be called to you (Bereishit 21:12),” that is, any man who acknowledges that two worlds exist is like Isaac. Rabbi Yudan said, Not,  “Isaac,” but “in Isaac,” that is, a portion of the seed of Isaac, not all of it.