[for me anyway] it is by grace "through faith" as it is written: many fail to say the whole of it, leaving it desolate, because we only have access into this grace wherein we stand "through faith": and faith cometh only and exclusively by hearing the Word of God, and hearing is not merely listening, rather it is to accept and submit to and rely upon God's Word. Again it is written that the just shall live by faith, which is to say that the just shall live by submitting to and relying upon the Word of God. But back to grace, which is mercy without judgment, whereas the law is judgment without mercy: but the grace of God we may receive is through submitting to and relying upon God's Word (especially concerning the Lord Jesus Christ): for the law was given by Moses; but grace and Truth came by Jesus Christ. As for Catholic or Protestant: is Christ divided? was Catholic crucified for us? or were we baptized in the name of Protestant? for while one says: I am of Catholic, and another says: I am of Protestant; are we not then still carnal, and walk as a secular minded one? Again as for me I am a follower of the Lord Jesus Christ, and if I must needs make use of some title or label, then I would say that I am a mere Christian, and nothing else. We have made ourselves consumed with this world's ways in labeling one another, so that the entire conversation is carnal without any spot of spiritual minded conveyance.
Ref. KJV only
(Ephesians 2:8-10)
(Romans 5:2)
(Romans 10:17)
(Habakkuk 2:4)
(James 2:13)
(John 1:17)
(1 Corinthians 1:12-13 & 3:3-4)
(John 5:43-44)