Hi
Found this....1 Corinthians 14:22 Wherefore tongues are for a sign, not to them that believe, but to them that believe not: but prophesying serveth not for them that believe not, but for them which believe.
1 Peter 3:21 is speaking of Israel and the resurrection of Jesus....see post below if you would like
1 PETER 3:18 BAPTISM SAVES
1 Peter 3:18 New International Version (NIV)
18 For Christ also suffered once for sins, the righteous for the unrighteous, to bring you to God. He was put to death in the body but made alive in the Spirit.
1 PETER is not speaking of Israel. It is addressing Christian Jews.
You took Corinthian's out of context. It is a criticism.
18 I thank God that I speak in tongues more than all of you. 19 But in the church I would rather speak five intelligible words to instruct others than ten thousand words in a tongue.
20 Brothers and sisters, stop thinking like children. In regard to evil be infants, but in your thinking be adults. 21 In the Law it is written:
“With other tongues
and through the lips of foreigners
I will speak to this people,
but even then they will not listen to me,
says the Lord.”e]">[e]
22 Tongues, then, are a sign, not for believers but for unbelievers; prophecy, however, is not for unbelievers but for believers. 23 So if the whole church comes together and everyone speaks in tongues, and inquirers or unbelievers come in, will they not say that you are out of your mind?