NET

10 “I will pour out on the kingship of David and the population of Jerusalem a spirit of grace and supplication so that they will look to me, the one they have pierced. They will lament for him as one laments for an only son, and there will be a bitter cry for him like the bitter cry for a firstborn.

Darby

10 And I will pour upon the house of David and upon the inhabitants of Jerusalem the spirit of grace and of supplications; and they shall look on me whom they pierced, and they shall mourn for him, as one mourneth for an only [son], and shall be in bitterness for him, as one that is in bitterness for [his] firstborn.

KJV

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