ZEC 12:10

10 And I will pour upon the Bais Dovid, and upon the inhabitants of Yerushalayim, the Ruach [(Spirit)] of Chen [(grace)] and of Tachanunim [(supplications for favor)]; and they shall look upon Me whom they have pierced, and they shall mourn for Him [(Moshiach)] as one mourneth for his yachid [(only son)], and shall grieve in bitterness for him, as one that is in bitterness for his bechor [(firstborn)].