וְאָ֣הַבְתָּ֔ אֵ֖ת יְהוָ֣ה אֱלֹהֶ֑יךָ וְשָׁמַרְתָּ֣ מִשְׁמַרְתּ֗וֹ וְחֻקֹּתָ֧יו וּמִשְׁפָּטָ֛יו וּמִצְוֺתָ֖יו כָּל־הַיָּמִֽים׃
所以，你要愛永恆者你的上帝，常常謹守祂所吩咐你謹守的，以及祂的律例、典章和誡命。
Mishneh Torah, Foundations of the Torah
It is mandatory to love and fear this Glorified and Awe-inspiring God, for it is said: "Thou shalt love the Lord thy God" (Deut. 6,5); and as it is said: "The Lord thy God thou shalt fear." (Ibid. 6, 13).
Mishneh Torah, Positive Mitzvot
To love Him, as it is said, “And thou shalt love the Lord thy God” (Deut. 6:5).
Mishneh Torah, Human Dispositions
The love for the proselyte, who came and embraced the protection beneath the wings of the Shekinah, rests upon two mandatory commandments, one because he is included in the commandment concerning a neighbor, and the other because he is a stranger, and the Torah charged us, saying: "Love ye therefore the stranger" (Deut. 10.19.). He commanded on the love for the stranger as He commanded concerning the love for Himself, saying: "And thou shalt love the Lord thy God" (Ibid. 6.5.). The Holy One, blessed is He! loves the strangers Himself, even as it is said: "And (He) loveth the stranger" (Ibid. 10.18).4Baba Mezi’a, 59b. G.