When that great saint and preacher, Augustine, lay dying..... - CH Spurgeon

“When that great saint and preacher, Augustine, lay dying—and I venture to say of Augustine that among all who were born of women, there has hardly ever been a greater than he—his mind was equal to any philosophy for its depth, its length and its breadth. And as an instructor in
theology he still remains, under Christ, next to the Apostle Paul, the master-teacher of the churches—yet, as he lay dying, he asked to have certain texts of Scripture printed in large capitals. Which do you suppose he chose? You may think that he selected some deep and mysterious passage about the high doctrine which he so greatly loved, but he did nothing of the kind. He chose those texts of Scripture which we commonly quote to sinking sinners—such as these—‘He that believes on the Son has everlasting life.’ ‘Whoever shall call upon the name of the Lord shall be saved.’ And that great saint feasted his dying eyes on the texts which we usually give to babes in Christ’s faith, or those who are seeking the Savior, for they suited him just then!”

The gospel is the power of God unto salvation. It has the power to save you, it has the power to sustain you and it has the power to glorify you. It is God's gospel that we must teach and preach. Anything less will create false converts destined for an eternity in hell.