וְ֭כַנָּה אֲשֶׁר־נָטְעָ֣ה יְמִינֶ֑ךָ וְעַל־בֵּ֝֗ן אִמַּ֥צְתָּה לָּֽךְ׃
And of the stock which Thy right hand hath planted, And the branch that Thou madest strong for Thyself. .
Read midrashic interpretation of Psalms 80:16: and classical rabbinic exegesis.