Mark 10:5

5ὁButδὲJesusἸησοῦςsaidεἶπενto themαὐτοῖς·Because ofΠρὸςtheτὴνhardness of heartσκληροκαρδίανof youὑμῶνHe wroteἔγραψενfor youὑμῖνtheτὴνcommandmentἐντολὴνthisταύτην·

But Jesus said to them, “For your⁺ hardness of heart he wrote you⁺ this commandment;