'Strengthening' in the Bible

His dominion will be vast and he will bring immeasurable prosperity. He will rule on David's throne and over David's kingdom, establishing it and strengthening it by promoting justice and fairness, from this time forward and forevermore. The Lord's intense devotion to his people will accomplish this.

He passed through Syria and Cilicia, strengthening the churches.

After he spent some time there, Paul left and went through the region of Galatia and Phrygia, strengthening all the disciples.

But the one who prophesies speaks to people for their strengthening, encouragement, and consolation.

What should you do then, brothers and sisters? When you come together, each one has a song, has a lesson, has a revelation, has a tongue, has an interpretation. Let all these things be done for the strengthening of the church.