What does Ecclesiasticus Chapter 6 say, and which statements belong to its speaker?

Ecclesiasticus 6 warns against becoming a neighbor's enemy, promising reproach and shame to evil, envious and double-tongued people. Do not exalt inner thoughts like a bull lest folly crush strength, eat leaves, destroy fruit and leave a dry wilderness tree. A wicked soul ruins its holder and pleases enemies. Sweet words multiply friends and appease enemies; be peaceful with many but select one counselor in a thousand. Test a friend before trusting easily. Self-interested and table companions may leave in trouble; others turn hostile and disclose strife. A steadfast friend is like oneself, confident among household members; the next condition says humility and hiding from one's face accompany unanimous good friendship, not hostile abandonment. Separate from enemies and beware friends.

Faithful friendship is strong defense, treasure beyond gold and silver and medicine of life and immortality, found by those fearing God. The God-fearing person's friend is according to him. Receive instruction from youth to gray hair, approach wisdom like plowing and sowing, and wait for fruit after brief labor. Unlearned and unwise find her unpleasant and soon cast away the trial stone. Wisdom is not manifest to many, but with those knowing her continues to God's sight.

Accept counsel, put feet in fetters and neck in chains, shoulder her weight, keep her ways wholeheartedly, search and hold her. Future rest and joy turn fetters into strong defense and foundation, chain into glorious robe, bands into healthful binding and crown into joy. Attentive mind and loving ear gain instruction. Stand with wise elders to hear divine discourse and praise, visit an understanding man early and wear his doorstep, and meditate God's precepts for a heart and wisdom-desire. Metaphors do not establish invincible friendship, eternal crown or voluntary loss of freedom.