2. As this unity and peace may consist with the ignorance of many truths, and with the holding some errors, so it must consist with (and it cannot consist without) the believing and practising those things which are necessary to salvation and church-communion; and they are, 1st, Believing that Christ the Son of God died for the sins of men. 2d, That whoever believeth ought to be baptized. The third thing essential to this communion, is a holy and a blameless conversation. (1.) That believing that the Son of God died for the sins of men is necessary to salvation, I prove by these texts, which tell us, that he that doth not believe shall be damned, Mark xvi. 16; John iii. 36; Rom. x. 9. That it is also necessary to church-communion appears from Matt. xvi. 16–18. Peter having confessed that Christ was the Son of the living God, Christ thereupon assures Peter, that upon this rock, viz., this profession of faith, or this Christ which Peter had confessed, he would build his church, and the gates of hell should not prevail against it. And, 1 Cor. iii. 11, the apostle having told the Corinthians that they were God’s building, presently adds, that they could not be built upon any foundation but upon that which was laid, which was Jesus Christ. All which proves, that Christian society is founded upon the profession of Christ; and not only scripture, but the laws of right reason, dictate this, that some rules and orders must be observed for the founding all society, which must be consented to by all that will be of it. Hence it comes to pass, that to own Christ as the Lord and head of Christians is essential to the founding of Christian society. (2.) The Scriptures have declared, that this faith gives the professors of it a right to baptism, as in the case of the eunuch, Acts viii. When he demanded why he might not be baptized, Philip answered, that if he believed with all his heart, he might. The eunuch thereupon confessing Christ, was baptized.