Sirach 51:29

29 Let your soul rejoice in his mercy, and be not ashamed of his praise.

Sirach 51:29 In-Context

27 Behold with your eyes, how that I have but little labour, and have gotten unto me much rest.
28 Get learning with a great sum of money, and get much gold by her.
29 Let your soul rejoice in his mercy, and be not ashamed of his praise.
30 Work your work betimes, and in his time he will give you your reward.

The Brenton translation of the Septuagint is in the public domain.