Many will speak of the need for grace; the Bible teaches that we not only need grace, but that God’s grace is sufficient to save.
Many will speak of the need for faith; the Bible teaches that we are justified by faith alone.
Many will say that Christ saves; the Bible teaches that Christ is the only and all sufficient Savior.
Many will appeal to the Scripture; the Bible teaches that Scripture alone is God breathed – the sole infallible rule of faith for the people of God.
Many speak of God’s glory, but that glory is diminished unless God Himself does the saving, all by Himself.

The dividing line of the Gospel has always been NECESSITY v. SUFFICIENCY:

Grace v. Grace Alone
Faith v. Faith Alone
Christ v. Christ Alone
Scripture v. Scripture Alone
The Glory of God v. the Glory of God Alone