Luke 1:69

and hath raised up a horn of salvation for us in the house of his servant David:

Luke 21:15

for I will give you a mouth and wisdom, which all your adversaries shall be utterly unable to contradict or resist.

Colossians 4:3-4

praying also at the same time for us, that God may open to us a door for the word, that I may speak the mystery of Christ, for which I am also in chains:

Treasury of Scripture Knowledge

Summary

In that day will I cause the horn of the house of Israel to bud forth, and I will give thee the opening of the mouth in the midst of them; and they shall know that I am the LORD.

I cause

Bible References

I cause

Luke 1:69
and hath raised up a horn of salvation for us in the house of his servant David:

The opening

Luke 21:15
for I will give you a mouth and wisdom, which all your adversaries shall be utterly unable to contradict or resist.
Colossians 4:3
praying also at the same time for us, that God may open to us a door for the word, that I may speak the mystery of Christ, for which I am also in chains: