Leviticus 19:18
17 You must not hate your brother in your heart. You must surely reprove your fellow citizen so that you do not incur sin on account of him. 18 You must not take vengeance or bear a grudge against any of your people, but you must love your neighbor as yourself. I am the Lord. 19 You must keep my statutes. You must not allow two different kinds of your animals to breed together, you must not sow your field with two different kinds of seed, and you must not wear a garment made of two different kinds of material.
Onkelos Leviticus 19:18
17 Thou shalt not hate thy brother in thy heart: reproving, reprove thou thy neighbour, and contract not sin on his account. 18 Thou shalt not be revengeful, nor keep enmity against the children of thy people, but love thy neighbour as thyself. I am the Lord. 19 You shall observe My statutes. Thy cattle thou shalt not make to gender with various kinds, nor sow thy field with various kinds, nor let a garment of a mixture of woollen and linen come upon thee.
Notes and References
"... This verse, which contains what is certainly the most popular command in the Torah, “Love your fellow as yourself,” the “Golden Rule,” is almost always quoted out of the context of the entire verse. The commandment is sandwiched between two statements that show its true meaning and significance. By introducing the mandate of loving fellow humans with the requirement of eschewing vengeance, which is an act, the Torah is informing its readers that unless “love of fellow” is also translated into concrete and appropriate social action, one misses the mark. Secondly, following the Golden Rule is the reminder “I am the Lord,” which emphasizes that the basis of the Golden Rule is the fact that God created all humans and that all people, no matter what their religion, sex, or origin, are the “children of God.” Pulling the Golden Rule out of its context diminishes both the understanding and the strength of this extraordinary biblical command ..."
Drazin, Israel, and Stanley M. Wagner Onkelos on the Torah, Leviticus: Understanding the Bible Text (p. 150) Gefen, 2006