He spoke plainly about this, and Peter took him aside and began to rebuke him.
NIV
And He said this freely (frankly, plainly, and explicitly, making it unmistakable). And Peter took Him by the hand and led Him aside and then [facing Him] began to rebuke Him.
AMP
And he spake that saying openly. And Peter took him, and began to rebuke him.
KJV
They went out and preached that people should repent.
NIV
So they went out and preached that men should repent [that they should change their minds for the better and heartily amend their ways, with abhorrence of their past sins].
AMP
And they went out, and preached that men should repent.
KJV
Immediately the rooster crowed the second time. Then Peter remembered the word Jesus had spoken to him: "Before the rooster crows twice you will disown me three times." And he broke down and wept.
NIV
And at once for the second time a cock crowed. And Peter remembered how Jesus said to him, Before a cock crows twice, you will utterly deny Me [disclaiming all connection with Me] three times. And having put his thought upon it [and remembering], he broke down and wept aloud and lamented.
AMP
And the second time the cock crew. And Peter called to mind the word that Jesus said unto him, Before the cock crow twice, thou shalt deny me thrice. And when he thought thereon, he wept.
KJV