Zechariah 12:10

And I; God the Father, so Acts 2:17,18 Isa 44:3. Will pour, in plentiful measures, as a plentiful rain is poured forth on a thirsty ground: this was fulfilled on Christ's exaltation, when he received gifts for men, and, being glorified, gave the Spirit, sent the Comforter to his disciples and believers; this is daily performed to the children of God, and will be continually performed till we all are made perfect, and are brought to be with Christ for ever. Upon the house of David; on some of that royal family; or, typically considered, it is the whole family of Christ, his house, who was the seed of David, and who is called David their king, Ezekiel 37:24 Hosea 3:5. Upon the inhabitants of Jerusalem; literally understood it was fulfilled extraordinarily, Acts 2:4,5; and, no doubt, in the ordinary manner to many of whom no mention is made: mystically, the inhabitants of Jerusalem are all the members of Christ, all believers of all ages. The Spirit of grace; which is the fountain of all graces in us, and which makes us lovely in the eye of our God; grace to purify us and to beautify us, that God may delight in us. And of supplications, or prayer, which is an early, inseparable fruit of the Spirit of grace: by the Spirit we cry, Abba, Father, and are helped to perform this duty, Romans 8:26. They, all those who have received this Spirit, shall look upon me, with an eye of faith, and turn to Christ, love, obey, and wait for him. Whom they have pierced: every one of us by our sins pierced him, but many of the Jews nailed him to the cross, and actually murdered the Lord of life. This, as foretold, so was very punctually fulfilled, and recorded in the account of his death given by John, 1 Thessalonians 19:34,35,37; this hath then a particular respect to the Jews, though not confined to them. They shall mourn for him; grieve, and heartily lament the crucifying the Lord Jesus Christ, not only as the sinful, cruel act of their fathers, but as that in which their sins had a great share. As one mourneth for his only son; with a very great and deep, with a long and continued sorrow, with an unfeigned and real sorrow, such as is the sorrow of a father in the death of an only son; they shall retain it inwardly, and express it outwardly, as in the funeral mournings on such occasions. Shall be in bitterness for him: this speaks the inwardest affection of the mourner; there may be tears in some cases without grief or bitterness in the spirit, but here both are joined; true repentance will bitterly lament the sins which brought sorrows and shame upon our Lord. As one that is in bitterness for his first-born: this bitterness is compared to the grief of one who loseth his first-born, to confirm and illustrate what he had just before spoken of Christians mourning for Christ.