15 And having disarmed the powers and authorities, he made a public spectacle of them, triumphing over them by the cross.a

Read Colossians 2:15 Using Other Translations

And having spoiled principalities and powers, he made a shew of them openly, triumphing over them in it.
He disarmed the rulers and authorities and put them to open shame, by triumphing over them in him.
In this way, he disarmed the spiritual rulers and authorities. He shamed them publicly by his victory over them on the cross.