Zechariah 12:1
12:1 The burden of the word of the LORD for {a} Israel, saith
     the LORD, who stretcheth forth the heavens, and layeth the
     foundation of the earth, and formeth the spirit of man
     within him.

     (a) That is, the ten tribes, which neglected God's benefit
         in delivering their brethren, and had rather remain in
         captivity, than to return home when God called them.

Zechariah 12:2
12:2 Behold, I will make Jerusalem a {b} cup of trembling to all
     the people around, when they shall be in the siege both
     against Judah [and] against Jerusalem.

     (b) Jerusalem will be defended against all her enemies: so
         will God defend all Judah also, and will destroy the
         enemies.

Zechariah 12:5
12:5 And the governors of Judah shall say in their heart, The
     {c} inhabitants of Jerusalem [shall be] my strength in the
     LORD of hosts their God.

     (c) Every captain, that had many under him before, will now
         think that the small power of Jerusalem will be
         sufficient to defend them against all enemies, because
         the Lord is among them.

Zechariah 12:7
12:7 The LORD also shall save the {d} tents of Judah first, that
     the glory of the house of David and the glory of the
     inhabitants of Jerusalem may not magnify [themselves]
     against Judah.

     (d) The people who are now as it were dispersed by the
         fields, and lie open to their enemies, will be
         preserved by my power just as if they were under their
         kings (which is meant by the house of David), or in
         their defended cities.

Zechariah 12:10
12:10 And I will pour upon the house of David, and upon the
      inhabitants of Jerusalem, the spirit of {e} grace and of
      supplications: and they shall look upon me whom they have
      {f} pierced, and they shall mourn for {g} him, as one
      mourneth for [his] only [son], and shall be in bitterness
      for him, as one that is in bitterness for [his] firstborn.

      (e) They will have the feeling of my grace by faith, and
          know that I have compassion on them.
      (f) That is, whom they have continually vexed with their
          obstinacy, and grieved my Spirit.  In John 19:37
          it is referred to Christ's body, whereas here it is
          referred to the Spirit of God.
      (g) They will turn to God by true repentance, whom before
          they had so grievously offended by their ingratitude.

Zechariah 12:11
12:11 In that day shall there be a great mourning in Jerusalem,
      as the {h} mourning of {i} Hadadrimmon in the valley of
      Megiddon.

      (h) They will exceedingly lament and repent for their
          offences against God.
      (i) Which was the name of a town and place near to
          Megiddo, where Josiah was slain; 2 Chronicles 35:22.

Zechariah 12:12
12:12 And the {k} land shall mourn, every family {l} apart; the
      family of the {m} house of David apart, and their wives
      apart; the family of the house of Nathan apart, and their
      wives apart;

      (k) That is, in all places where the Jews will remain.
      (l) Signifying, that this mourning or repentance would not
          be a vain ceremony: but every one touched with his own
          griefs will lament.
      (m) Under these certain families he includes all the
          tribes, and shows that both the kings and the priests
          had by their sins pierced Christ.

Zechariah 12:13
12:13 The family of the house of Levi apart, and their wives
      apart; the family of {n} Shimei apart, and their wives
      apart;

      (n) Also called Simeon.

Zechariah 12:14
12:14 All the families that {o} remain, every family apart, and
      their wives apart.

      (o) That is, who were elect by grace, and preserved from
          the common destruction.