Who was used an object lesson to teach that God does not show favorites?

The Apostle Peter used the example of the Roman centurion Cornelius to illustrate that God does not show favoritism. In Acts 10, Peter learns through a vision that God accepts people from all nations who fear Him and do what is right. This encounter emphasizes that God's grace and salvation are available to everyone, regardless of their background or ethnicity. Thus, Cornelius serves as a powerful example of God's impartiality.