Matthew 7:12

Πάντα οὖν ὅσα ἂν θέλητε ἵνα ποιῶσιν ὑμῖν οἱ ἄνθρωποι, οὕτω καὶ ὑμεῖς ποιεῖτε αὐτοῖς· οὗτος γάρ ἐστιν ὁ νόμος καὶ οἱ προφῆται.

In everything, therefore, whatever you want men to do to you, do you also to them, for this is the Law and the Prophets.