The author of 1st Peter is very close to Mark.1 This is relevant because Peter was very close to Mark,2 and being so close to Mark is presumably not common.
Peter's sermons in the book of Acts share striking similar expressions.
• “…by God’s deliberate plan and foreknowledge…” (Acts 2:23) // “…chosen according to the foreknowledge of God…” (1 Peter 1:2) • “Silver or gold I do not have…” (Acts 3:6) // “…it was not with perishable things such as silver or gold that you were redeemed…” (1 Peter 1:18) • “…the faith that comes through him…” (Acts 3:16) // “Through him you believe in God…" (1 Peter 1:21) • “Repent, then, and turn to God, so that your sins may be wiped out, that times of refreshing may come from the Lord, and that he may send the Messiah, who has been appointed for you—even Jesus. Heaven must receive him until the time comes for God to restore everything, as he promised long ago through his holy prophets.” (Acts 3:19-21) // “Since everything will be destroyed in this way, what kind of people ought you to be? You ought to live holy and godly lives as you look forward to the day of God and speed its coming.” (1 Peter 3:11-12) • “I now realize how true it is that God does not show favoritism…” (Acts 10:34) // "Since you call on a Father who judges each person’s work impartially…” (1 Peter 1:17) • “…whom God appointed as judge of the living and the dead…” (Acts 10:42) // “But they will have to give account to him who is ready to judge the living and the dead.” (1 Peter 4:5)