When The LORD pours the Spirit of grace and supplication on the house of David they will look upon Jesus whom they pierced and mourn and grieve for Him

[Zechariah 12:10] And I will pour on the house of David and on the inhabitants of Jerusalem the Spirit of grace and supplication; then they will look on Me whom they pierced. Yes, they will mourn for Him as one mourns for his only son, and grieve for Him as one grieves for a firstborn.