Talmud do Samuela II 17:6

BARAITHA. Sit before the elders and incline your ear to listen to their words.
GEMARA. As it is written, Ask thy father, and he will declare unto thee, thine elders and they will tell thee.⁹Deut. 32, 7.
BARAITHA. Endeavour in connection with their words to reply on the first point first and on the last point last.
GEMARA. We have learnt there:¹⁰Aboth V, 10 (Sonc. ed., V, 7, p. 64). Seven marks distinguish an uncultured man and seven a wise man. Why does [the Mishnah] first mention the uncultured man? It should have mentioned the wise man [first]!¹¹It is more befitting to begin with the qualities of the wise. Further, why [immediately after mentioning the uncultured man does it enlarge upon the marks] of the wise man [without first enumerating the marks of the uncultured man]?¹²The Mishnah reads: ‘There are seven marks of an uncultured man and seven of a wise man. The wise man does not speak’, etc. Because [the Mishnah] wishes to state, ‘The wise man does not speak before him who is greater than he in wisdom’. Let, then [the Mishnah] state, ‘The uncultured man speaks’, etc.! The teacher enumerates the merits of the wise, and as for the uncultured the converse [applies to them].
R. Aḥa said to Raba, ‘Whence do we know from the Torah that one should speak to the first thing first and the last thing last?’ [He replied,] ‘Whence [do we know it]? It is a Rabbinical teaching’. [R. Aḥa] retorted, ‘According to your reasoning, whence are all of them¹³The seven marks of the wise man. derived?’ He replied, ‘I will tell you them [all from the Torah]. “The wise man does not speak, etc.” [can be learnt] from Hushai, as it is written, Shall we do after his saying? if not, speak thou.¹⁴2 Sam. 17, 6. Ḥushai did not speak in the presence of Aḥitophel, who was greater in wisdom than he, but merely reported to Absalom what he had said. “He does not break in upon the speech of the wise”, as it is written, And it came to pass, that when Jeremiah had made an end of speaking … then spoke Azariah.¹⁵Jer. 43, 1f. “He is not hasty to answer”, as it is written, Be not rash with thy mouth.¹⁶Eccl. 5, 1. “He questions according to the subject”, as it is written, And he asked them … Is your father well, the old man of whom ye spoke? Is he yet alive?¹⁷Gen. 43, 27. And they answered, Thy servant our father is well, he is yet alive.¹⁸ibid. 28. “He speaks to the first point first”, as it is written, And (he) said: Whose daughter art thou? tell me, I pray thee. Is there room in thy father’s house for us to lodge in?¹⁹ibid. XXIV, 23. And it is written, And she said unto him, I am the daughter of Bethuel²⁰ibid. 24. and then, We have both straw and provender enough.²¹ibid. 25. “And he acknowledges the truth”: This refers to Moses, as it is written, And when Moses heard that, it was well-pleasing in his sight;²²Lev. 10, 20, i.e. Moses acknowledged the force of Aaron’s argument. and it is written, For he hath spoken to us in the name of the Lord our God’.²³Jer. 26, 16. The reference is to Jeremiah, the genuineness of whose prophecy is acknowledged by the princes.