And the Lord remembered Sarah (Gen. 21:1). Scripture states elsewhere in reference to this verse: That confirmeth the word of His servant, and performeth the counsel of His messengers. That saith of Jerusalem: “She shall be inhabited”; and of the cities of Judah: “They shall be built” (Isa. 44:26). That confirmeth the word of His servant refers to Abraham, for the Holy One, blessed be He, said: I opened his womb (Abimelech) on account of Abraham, My servant, who prayed in his behalf, as it is said: And Abraham prayed unto God (Gen. 20:17). Performeth the counsel of His messengers alludes to the angels who informed Abraham that he would have an offspring, as it is said: I will certainly return unto you when the season cometh around (ibid. 18:10).
That saith of Jerusalem: “She shall be inhabited”; and of the cities of Judah; “They shall be built” (Isa 44:26) relates to the subject we are discussing. Though the nations were confident that Jerusalem would not be rebuilt, it will be rebuilt, as it is said: That saith of Jerusalem: “She shall be inhabited”, and it is written elsewhere: When the Lord hath built Zion (Ps. 102:17). But if you are doubtful as to the ultimate rebuilding of Jerusalem, look unto Abraham, your father, and unto Sarah who bore you (Isa. 51:2), for just as I did in behalf of Sarah and Abraham, so I shall do in behalf of Jerusalem.