Tobit 3:2

2 O Lord, thou art just, and all thy works and all thy ways are mercy and truth, and thou judgest truly and justly for ever.

Tobit 3:2 In-Context

1 Then I being grieved did weep, and in my sorrow prayed, saying,
2 O Lord, thou art just, and all thy works and all thy ways are mercy and truth, and thou judgest truly and justly for ever.
3 Remember me, and look on me, punish me not for my sins and ignorances, and the sins of my fathers, who have sinned before thee:
4 For they obeyed not thy commandments: wherefore thou hast delivered us for a spoil, and unto captivity, and unto death, and for a proverb of reproach to all the nations among whom we are dispersed.
5 And now thy judgments are many and true: deal with me according to my sins and my fathers': because we have not kept thy commandments, neither have walked in truth before thee.

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