<p>15:17 <i>I&nbsp;have therefore my boasting in Christ Jesus in things pertaining to God- </i>Paul has just argued that the presence of the Spirit in the hearts of the Gentiles makes them acceptable to God, and the Jewish Christians must accept this (see on :16). Now Paul goes on to demonstrate how that same Spirit has been manifest in a very public, even miraculous way in his entire mission to convert Gentiles to Christ. The &quot;things pertaining to God&quot; alludes to the Jewish language of sacrifice. Those sacrifices were the Gentile converts, and they were acceptable despite Paul's position on the Law.</p><p>No flesh may glory before God (1 Cor. 1:29); but Paul, in his spiritual man, as counted righteous before God, could glory (Rom. 15:17).</p>