Can a Christian Lose Their Salvation?

Two answers are common here, and Lutherans give neither. One says salvation, once received, cannot be lost—the elect were decreed to persevere, so anyone who falls away was never truly saved to begin with. The other says salvation is yours to keep or forfeit by your own performance, so that every serious sin puts you back on the edge of the cliff. The first can breed false security; the second breeds anxious striving. Neither fits Scripture, which does two things at once: it warns real believers that they can fall, and it promises that God will keep His own.

Scripture’s warnings are not hypothetical. Faith can be shipwrecked (1 Timothy 1:19); a branch can be cut off; the one who thinks he stands is told to take heed lest he fall (1 Corinthians 10:12). Apostasy—the genuine loss of a genuine faith—is a real danger, and the Bible never soothes us out of taking it seriously. So no: “once saved, always saved,” in the sense that nothing you could do would ever sever you from Christ, is not what Scripture teaches.

And yet the comfort is enormous, because your security does not rest on your grip. Christ says no one will snatch His sheep out of His hand (John 10:28); Peter writes that you are guarded by God’s power through faith (1 Peter 1:5); Paul is confident that the One who began a good work will bring it to completion (Philippians 1:6). You are kept—but not by holding on tightly enough. You are kept because God is holding you.

So how do you not fall away? Not by white-knuckled vigilance, but by staying where Christ hands out His gifts: the Word, your Baptism, the Supper, the absolution. Faith is not preserved by being guarded closely enough by you; it is preserved by being fed by Him. Stay where He feeds you, and the warning does its sobering work while the promise does the keeping.