Matthew 19:8

πρὸς τ., with reference to. σκληροκαρδίαν : a word found here and in several places in O. T. (Sept [110]), not in profane writers; points to a state of heart which cannot submit to the restraints of a high and holy law, literally uncircumcisedness of heart (Deuteronomy 10:16; Jeremiah 4:4). ἐπέτρεψεν, permitted, not enjoined. Moses is respectfully spoken of as one who would gladly have welcomed a better state of things; no blame imputed except to the people who compelled or welcomed such imperfect legislation (ὑμῶν twice in Matthew 19:8). ἀπʼ ἀρχῆς, etc.: the state of things which made the Mosaic rule necessary was a declension from the primitive ideal.

[110] Septuagint.