holding faith and a good conscience; which some having thrust away made a shipwreck concerning the faith;
Which some having put away - That is, which good conscience some have put from them, or in other words, have not followed its dictates. The truth thus taught is, that people make shipwreck of their faith by not keeping a good conscience. They love sin. They follow the leadings of passion. They choose to indulge in carnal propensities. As a matter of course, they must, if they will do this, reject and renounce the gospel. People become infidels because they wish to indulge in sin. No man can be a sensualist, and yet love that gospel which enjoins purity of life. If people would keep a good conscience, the way to a steady belief in the gospel would be easy. If people will not, they must expect sooner or later to be landed in infidelity.