14 “You shall arise, and have mercy upon Sion: for it is time that Thou have mercy upon her”. What time? “But when the fullness of time had come, God sent forth His Son, made of a woman, made under the Law.” And where is Sion? “To redeem them that were under the Law.” First then were the Jews: for thence were the Apostles, thence those more than five hundred brethren, thence that later multitude, who had but one heart and one soul toward God. Therefore, “the time has come.” What time? “Behold, now is the accepted time: behold, now is the day of salvation.” Who says this? That Servant of God, that Builder, who said, “You are God's building.”
Source: The Enarrations, or Expositions, on the Psalms (New Advent)