Contrary to custom, the inscription was made in three languages: Hebrew, the national and local tongue; Greek, the widely used tongue; and Roman, the language of the victors. Pilate's purpose may have been that every foreigner also could read this inscription, since Hebrew was little known to outsiders.
Yet in this, without doubt, a higher purpose was fulfilled. In the moments of His uttermost humiliation, the Lord was proclaimed to the whole world as King in three languages, two of which were the most widespread in the world.
"Pilate placed on the cross, as upon a monument of victory, an inscription that sends forth a bright voice, proclaims His victory, and announces the Kingdom" (Chrysostom).
The Lord's accusers took this inscription as a malicious mockery of them by Pilate. They came to him asking that it be changed in a sense more favorable to them. But from the proud and offended Roman they received a decisive refusal, sharply expressed. By it the Sanhedrin was again made to feel its dependence on a foreign pagan power.