And so God has fulfilled what He foretold by the mouth of all the prophets, that His Christ (Messiah, Anointed) would suffer.

whom heaven must keep until the time for the [complete] restoration of all things about which God promised through the mouth of His holy prophets from ancient time.

who by the Holy Spirit, through the mouth of our father David, Your servant, said,

‘Why did the nations (Gentiles) become arrogant and rage,
And the peoples devise futile things [against the Lord]?

Now this was the passage of Scripture which he was reading:

“Like a sheep He was led to the slaughter;
And as a lamb before its shearer is silent,
So He does not open His mouth.

Then Philip spoke and beginning with this Scripture he preached Jesus to him [explaining that He is the promised Messiah and the source of salvation].

Opening his mouth, Peter said:

“Most certainly I understand now that God is not one to show partiality [to people as though Gentiles were excluded from God’s blessing],

But I said, ‘Not at all, Lord; for nothing common (unholy) or [ceremonially] unclean has ever entered my mouth.’

And [at the same time] Paul and Barnabas spoke out boldly and confidently, saying, “It was necessary that God’s message [of salvation through faith in Christ] be spoken to you [Jews] first. Since you repudiate it and judge yourselves unworthy of eternal life, now we turn to the Gentiles.

After a long debate, Peter got up and said to them, “Brothers, you know that in the early days God made a choice among you, that by my mouth the Gentiles would hear the message of the gospel and believe.

So we have sent Judas and Silas, who will report by word of mouth the same things [that we decided in our meeting].

But when Paul was about to reply, Gallio said to the Jews, “If it were a matter of some misdemeanor or serious crime, O Jews, I would have reason to put up with you;

And he said, ‘The God of our fathers has appointed you to know His will, [and to progressively understand His plan with clarity and power] and to see the Righteous One [Jesus Christ, the Messiah] and to hear a message from His [own] mouth.

[At this] the high priest Ananias ordered those who stood beside him to strike Paul on the mouth.