The Lord will punish the unmerciful and insolent.
Some friends are friends only in name. All counselors praise the counsel they give, but some give counsel in their own interest. Don't consult a miser about generosity, the merciless about kindness, or an idler about work. Rather, consult with a godly person, one who is like-minded with yourself, who will grieve with you if you fail. But, above all, pray to the Most High to direct your way in truth.
As I have noted that parts of this book of wisdom don't fit our times very well, I can also note that many parts are very applicable to us now; e.g. this excerpt from Sirach 37,
27 My child, test yourself during your life. See what's bad for you, and don't give in to it. 28 All things aren't beneficial to everybody, and all things aren't pleasing to every person. and don't be unrestrained with food. 29 Don't be greedy for every delicacy, 30 Eating a lot of food will make one sick, and gluttony will lead to nausea. 31 Many have died because of gluttony, but those who are on guard against it will prolong life.