Why does Paul say the old covenant's glory was fading?
Paul isn't describing the light on Moses' face physically dimming — he uses a Greek verb meaning 'being rendered inoperative' to make a covenantal claim: the old covenant's glory was real, but it was always temporary by nature, already being retired even as it shone.
Paul is not saying the actual light on Moses' face was visibly getting dimmer. He is making a bigger claim: the whole old covenant's glory was, by its nature, on its way out — even while it was genuinely glorious.
The word that carries this argument is katargeo (καταργέω, G2673) — "to render inoperative, to abolish, to make obsolete." It is not a rare Bible word generally — it shows up thirty-one times in the Greek New Testament — but four of those thirty-one uses are packed into a few verses of 2 Corinthians 3 (verses 7, 11, 13, and 14), the densest cluster of the word anywhere Paul writes. That concentration is the tell: this chapter is Paul's sustained meditation on something being retired.
For if the ministry of death, written and engraved on stones, came with glory... how will the ministry of the Spirit not be more glorious? — 2 Corinthians 3:7-8
Notice Paul does not deny the old covenant's glory. He grants it fully — Israel "could not gaze steadily" at Moses' face because of it (2 Corinthians 3:7). His argument runs from lesser to greater: if the covenant of death carried this much glory, how much more the covenant of the Spirit and of righteousness?
The grammar of katargeo here matters. In verses 7, 11, and 13, the word appears as a present passive participle — a form that describes an ongoing process, not something already finished. Paul is not reporting a completed event ("the glory faded and stopped"). He is characterizing what that glory was, at its very origin: a glory already, in covenantal status, being rendered obsolete even as Moses' face shone with it. It was real, but it was never built to last — because something greater than it was always coming.
That contrast comes to a head in verse 11: what was "being done away" (katargoumenon) is set against what "remains" (menon) — the glory of the new covenant. One covenant's glory has an expiration built into it from the start; the other's glory abides.
So when Paul calls the old glory "fading," he is making a claim about covenants, not about photons. Moses' face really did shine, and Israel really could not look at it directly — but that glory, Paul says, always belonged to a covenant that was passing away, in favor of one that does not.
Did Moses' face really have horns?
No — it is a famous translation mix-up. The Hebrew verb behind Exodus 34:29 means 'sent out rays' (a shining face), but Jerome's Latin Vulgate read it through a related word for 'horn' and translated it 'his face was horned,' which is why Michelangelo's Moses has horns.
How does the Transfiguration connect to Moses' shining face?
The same shining-face imagery reappears when Jesus is transfigured — but where Moses' face reflected a borrowed glory he picked up near God, Jesus' face is described as the glory's own source, and Moses himself is there on the mountain to see it.
What does 'from glory to glory' mean in 2 Corinthians 3:18?
It describes believers being changed by beholding the Lord's glory the way Moses' face was changed by standing near it — an ongoing transformation moving from the old covenant's borrowed, veiled glory into the new covenant's direct, unveiled glory, and deepening as it goes.
What was the veil Moses wore, and why did he wear it?
It is called a masveh in Hebrew — a face-covering used only in this one passage of the Bible — and Moses put it on after speaking God's words to Israel, taking it off again only when he went back in to speak with the LORD.