New International Version
(He did not know what to say, they were so frightened.)

New Living Translation
He said this because he didn’t really know what else to say, for they were all terrified.

English Standard Version
For he did not know what to say, for they were terrified.

Berean Study Bible
For they were all so terrified that Peter did not know what else to say.

New American Standard Bible
For he did not know how to reply; for they became terrified.

NASB 1995
For he did not know what to answer; for they became terrified.

NASB 1977
For he did not know what to answer; for they became terrified.

Amplified Bible
For he did not [really] know what to say because they were terrified [and stunned by the miraculous sight].

Christian Standard Bible
because he did not know what to say, since they were terrified.

Holman Christian Standard Bible
because he did not know what he should say, since they were terrified.

Contemporary English Version
But Peter and the others were terribly frightened, and he did not know what he was talking about.

Good News Translation
He and the others were so frightened that he did not know what to say.

GOD'S WORD® Translation
(Peter didn't know how to respond. He and the others were terrified.)

International Standard Version
(Peter didn't know how to respond, because they were terrified.)

NET Bible
(For they were afraid, and he did not know what to say.)