for I will give you a mouth [i.e., the ability to speak properly] and wisdom [i.e., the knowledge of what to say], which none of your opponents will be able to resist or speak against.
And they [i.e., the apostles] were all filled with [the power of] the Holy Spirit and began to speak [“the mighty accomplishments of God,” See verse 11] in different languages, as the Holy Spirit gave them the ability.
since you are looking for proof that Christ is speaking through me. Christ is not weak in His dealing with you, but is powerful among you. [Note: Paul probably refers to the positive effects of his ministry there in Corinth].
It was revealed to these prophets that you people, not they, were the ones being ministered to in the matters now being announced to you by those who preached the Gospel to you by the Holy Spirit, who was sent from heaven. [This message contained] things which angels would like to look into.
And when they could not agree among themselves they left, after hearing Paul make this one [important] statement: “The Holy Spirit has spoken truthfully to your forefathers through Isaiah the prophet,
If then you know how to give good gifts to your children, even though you are sinful [human beings], how much more [likely] is it that your Father in heaven will give the Holy Spirit to those who ask Him?”
[It was] David himself [who] said by [inspiration of] the Holy Spirit [Psa. 110:1], ‘The Lord [i.e., God] said to my [i.e., David’s] Lord [i.e., Jesus], sit at my right side until I make your enemies the footrest [i.e., in subjection] under your feet.’
And because of this we also thank God continually that, when you people received the message of God, which you heard from us, you did not accept it as a message from [mere] human beings, but as it truly is, the message from God, which is at work in you believers.