First Peter and the Old Testament

“First Peter makes abundant use of the Old Testament, with at least eighteen direct citations and twenty-five allusions. The references are predominantly from four books—Genesis, Isaiah, Psalms, and Proverbs—and Peter normally makes

 Use of the Greek version, the Septuagint (LXX).”

Daniel Keating, First and Second Peter, Jude, Catholic Commentary on Sacred Scripture (Grand Rapids: Baker, 2011), 20.