<p>2:23 <i>Him, being delivered up according to the definite plan and foreknowledge of God-</i> Perhaps Peter is addressing the sense some of the Jews had that the Lord's death was according to God's will, and therefore they were the less guilty.</p><p><i>You by the hand of men outside the Law, did crucify and slay- </i>Although it was Roman hands who crucified the Lord, Peter reminds the Jews that God judged it to have been effectively their hands. Their sin was not mitigated against by the fact that others had done it, when they planned it.</p>