“Who by him do believe in God, that raised him up from the dead, and gave him glory; that your faith and hope might be in God.”
King James Version (KJV)
1:21 Who through him believe - For all our faith and hope proceed from the power of his resurrection. In God that raised Jesus, and gave him glory - At his ascension. Without Christ we should only dread God; whereas through him we believe, hope, and love.
1Pe 1:21 That your faith and hope might be in God. Faith, with Peter as well as Paul, is essential to salvation. The salvation is of God, not of ourselves, and is made ours by faith.