Zechariah 9:11

As for the Israelites (Zion), the Lord promised to set free those of them whom their enemies would hold prisoner. He pictured this as taking them out of a dry cistern where they were captives, like Joseph and Jeremiah (Genesis 37:24; Jeremiah 38:6-9).

"God’s people had been in the ’pit’ of Babylonian exile, but they would find themselves in a worse predicament in the end of the age. From that pit God would again retrieve them according to His faithfulness to His covenant promises." [Note: Merrill, p. 258.]

Blood sacrifices ratified the Abrahamic Covenant (Genesis 15:9-11) and the Mosaic Covenant (Exodus 24:3-8; Exodus 29:38-46; cf. Mark 14:24).