Sirach 28:24
Ben Sira, Ecclesiasticus20 For its yoke is a yoke of iron, and its fetters are fetters of bronze; 21 its death is an evil death, and Hades is preferable to it. 22 It has no power over the godly; they will not be burned in its flame. 23 Those who forsake the Lord will fall into its power; it will burn among them and will not be put out. It will be sent out against them like a lion; like a leopard it will mangle them. 24 As you fence in your property with thorns, 25 so make a door and a bolt for your mouth. As you lock up your silver and gold, so make balances and scales for your words. 26 Take care not to err with your tongue, and fall victim to one lying in wait.
Ambrose On the Duty of the Clergy 1.11
11 But for whom was it written, unless it was for each one of us: Hedge your possession about with thorns, and bind up your silver and gold, and make a door and a bar for your mouth, and a yoke and a balance for your words? Your possession is your mind, your gold your heart, your silver your speech: The words of the Lord are pure words, as silver tried in the fire. A good mind is also a good possession. And, further, a pure inner life is a valuable possession. Hedge in, then, this possession of yours, enclose it with thought, guard it with thorns, that is, with pious care, lest the fierce passions of the flesh should rush upon it and lead it captive, lest strong emotions should assault it, and, overstepping their bounds, carry off its vintage. Guard your inner self. Do not neglect or contemn it as though it were worthless, for it is a valuable possession; truly valuable indeed, for its fruit is not perishable and only for a time, but is lasting and of use for eternal salvation. Cultivate, therefore, your possession, and let it be your tilling ground.
Notes and References
"... The Book of Ecclesiasticus [Sirach] has been honored still more highly among the Christians, being cited in the Epistle of James (Edersheim, in Wace, 'Apocrypha,' p. 21), the Didache (4:5), and the Epistle of Barnabas (19:9), while Clement of Alexandria and Origen quote from it repeatedly, as from a γραφή, or holy book. In the Western Church, Cyprian frequently appeals to it in his 'Testimonia,' as does Ambrose in the greater number of his writings. In like manner the Catalogue of Cheltenham, Damasus I., the Councils of Hippo (393) and Carthage (397), Pope Innocent I., the second Council of Carthage (419), and Augustine all regard it as a canonical book. This is contrary, however, to the opinions of the Council of Laodicea, of Jerome, and of Rufinus of Aquileia, which authorities rank it among the ecclesiastical books. It was finally declared canonical by the Council of Trent; and the favor with which the Church has always regarded it has preserved it in its entirety. ..."
Toy, Crawford Howell The Wisdom of Jesus the Son of Sirach (pp. 1-10) Jewish Encyclopedia, 2021