What does the Bible say about God's promises to the church?

In Zechariah 2:4-5, we see the promise that Jerusalem will be inhabited as towns without walls for the multitude of men and cattle therein. This imagery reflects the church's expansive growth and divine protection. The Lord declares that He will be a wall of fire round about her and will be the glory in the midst of her, illustrating His care and safeguarding of the church against its enemies. This assurance demonstrates that the church's existence and vitality are grounded in God's sovereign grace and power.