Is salvation on a different basis in this age, being now by faith and baptism?

Is salvation on a different basis in this age, being now by faith and baptism?

The Old Testament nowhere suggests baptism is a condition for salvation, so that if baptism is necessary for salvation now, this must only be the case since the ascension of Christ.

In Romans 4, Paul shows that justification is through faith by going to the Old Testament. Forgiveness for David and righteousness for Abraham came through faith apart from circumcision or the law (vv. 2-16). If these blessings are on a different basis now, namely faith plus baptism, why would Paul go to the Old Testament to support his teaching? We infer from Romans 4 that in every age salvation is by faith alone and is not dependent on baptism, law-keeping, good works, rituals, or righteous living.

D. Oliver