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Galatians 3:15
Robinson-Pierpont Byzantine Textform · Berean Standard Bible
Ἀδελφοί, κατὰ ἄνθρωπον λέγω· ὅμως ἀνθρώπου κεκυρωμένην διαθήκην οὐδεὶς ἀθετεῖ ἢ ἐπιδιατάσσεται.
Brothers, let me put this in human terms. Even a human covenant, once it is ratified, cannot be canceled or amended.