Luke 1:69

and raised up a horn of salvation for us in the house of David His servant;

Luke 21:15

for I will give you a mouth, and wisdom which all your adversaries shall not be able to withstand or gainsay.

Colossians 4:3-4

at the same time praying for us also, that God may open to us a door for the word, to speak the mystery of Christ (because of which I have also become bound),

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 raised up a horn of salvation for us in the house of David His servant;

The opening

Luke 21:15
for I will give you a mouth, and wisdom which all your adversaries shall not be able to withstand or gainsay.
Colossians 4:3
at the same time praying for us also, that God may open to us a door for the word, to speak the mystery of Christ (because of which I have also become bound),