“For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.”
King James Version (KJV)
1:21 For prophecy came not of old by the will of man - Of any mere man whatever. But the holy men of God - Devoted to him, and set apart by him for that purpose, spake and wrote. Being moved - Literally, carried. They were purely passive therein.
2Pe 1:21 For the prophecy came not in old time by the will of man. No scriptural prophecy is due to the will of man, But holy men of God spake [as they were] moved by the Holy Ghost. But all came from men speaking from God when moved by the Holy Spirit. Prophecy is God's word, not the words of man.