<p>The Doctrine of Baptism and the Distinction in Covenants (1654) by Thomas Patient stands as one of the most significant defenses of credo-baptism from a Reformed perspective.&nbsp;Specifically he vindicates credo-baptism and critiques paedo-baptism on the basis of the Covenant of Grace as a spiritual covenant into which one is initiated not by an external sign but by faith.</p><p><br></p>