14Pursue peace with everyone, and holiness, for without it no one will see the Lord.15 See to it that no one comes short of the grace of God, that no one be like a bitter root springing up and causing trouble, and through it many become defiled. 16 And see to it that no one becomes an immoral or godless person like Esau, who sold his own birthright for a single meal. 17 For you know that later when he wanted to inherit the blessing, he was rejected, for he found no opportunity for repentance, although he sought the blessing with tears. 18 For you have not come to something that can be touched, to a burning fire and darkness and gloom and a whirlwind 19 and the blast of a trumpet and a voice uttering words such that those who heard begged to hear no more. 20 For they could not bear what was commanded: “If even an animal touches the mountain, it must be stoned.” 21 In fact, the scene was so terrifying that Moses said, “I shudder with fear.” 22 But you have come to Mount Zion, the city of the living God, the heavenly Jerusalem, and to myriads of angels, to the assembly 23 and congregation of the firstborn, who are enrolled in heaven, and to God, the judge of all, and to the spirits of the righteous, who have been made perfect, 24 and to Jesus, the mediator of a new covenant, and to the sprinkled blood that speaks of something better than Abel’s does.
Date: 80-90 C.E. (based on scholarly estimates)
Pirkei Avot 1:12
9 Shimon ben Shetach used to say: be thorough in the interrogation of witnesses, and be careful with your words, lest from them they learn to lie. 10 Shemaiah and Abtalion received [the oral tradition] from them. Shemaiah used to say: love work, hate acting the superior, and do not attempt to draw near to the ruling authority. 11 Abtalion used to say: Sages be careful with your words, lest you incur the penalty of exile, and be carried off to a place of evil waters, and the disciples who follow you drink and die, and thus the name of heaven becomes profaned. 12Hillel and Shammai received [the oral tradition] from them. Hillel used to say: be of the disciples of Aaron, loving peace and pursuing peace, loving mankind and drawing them close to the Torah.13 He [also] used to say: one who makes his name great causes his name to be destroyed; one who does not add [to his knowledge] causes [it] to cease; one who does not study [the Torah] deserves death; one who makes [unworthy] use of the crown [of learning] shall pass away.