וַיְבָ֤רֶךְ דָּוִיד֙ אֶת־יְהוָ֔ה לְעֵינֵ֖י כָּל־הַקָּהָ֑ל וַיֹּ֣אמֶר דָּוִ֗יד בָּר֨וּךְ אַתָּ֤ה יְהוָה֙ אֱלֹהֵי֙ יִשְׂרָאֵ֣ל אָבִ֔ינוּ מֵעוֹלָ֖ם וְעַד־עוֹלָֽם׃
Darum segnete David den HERRN vor der ganzen Gemeinde; und David sagte:'Gepriesen sei du, HERR, der Gott Israels, unser Vater, für immer und ewig.
Rashi on I Chronicles
And David blessed the Lord before the eyes of the entire assembly that he had assembled, as is stated (above 28:1): “And David assembled,” and he blessed them for their willing donations.
Rashi on I Chronicles
and David said, “Blessed are You, the God of Israel our Father For this reason he mentions Israel more than Abraham and Isaac because Jacob also vowed, as it is written (Gen. 28:20): “And Jacob made a vow.”
Rashi on I Chronicles
Israel our Father Israel the Patriarch, and also in Genesis Rabbah is (70:2) it is explained in that manner. I, David, and my people, have vowed like Israel the Patriarch, and whoever makes a vow must mention Israel in his vow. And likewise (Ps. 132:2): “vowed to the mighty God of Jacob.”