How does Peter's sermon highlight our need for a Savior?

In Acts 2, Peter’s sermon serves as a pivotal moment in revealing the necessity of a Savior. By proclaiming, 'Let all the house of Israel know assuredly that God hath made that same Jesus whom ye have crucified, both Lord and Christ,' Peter confronts the audience with their responsibility in Christ's crucifixion. This earnest call to recognize that their sins led to Jesus's sacrifice illustrates humanity's need for a Savior. The Holy Spirit, working through Peter's message, convicts hearts and leads them to seek forgiveness, reminding us all of the redemptive work that Christ achieved on the cross.