Ben Sira 19:20

20 The fear of the Lord is all wisdom; and in all wisdom is the performance of the law and the knowledge of His omnipotence.

Ben Sira 19:20 In-Context

18 The fear of the Lord is the first step to be accepted by Him, and wisdom obtaineth His love.

19 The knowledge of the commandments of the Lord is the doctrine of life, and they that do things that please Him shall receive the fruit of the tree of immortality.

20 The fear of the Lord is all wisdom; and in all wisdom is the performance of the law and the knowledge of His omnipotence.

21 If a servant say to his master, "I will not do as it pleaseth thee," though afterward he do it, he angereth him that nourisheth him.

22 The knowledge of wickedness is not wisdom, neither at any time the counsel of sinners prudence.