Hebrews 13:18

Pray for us
Who are in the ministry; your guides and governors; since the work is of so much moment, and so arduous and awful, and you have such a concern in it; (See Gill on 2 Thessalonians 3:1).

for we trust we have a good conscience;
there is a conscience in every man, but it is naturally evil: a good conscience is a conscience sanctified by the Spirit of God, and sprinkled by the blood of Jesus; here it chiefly respects the upright discharge of it in the ministerial work: this the apostle often asserts, and appeals to, and which he here expresses with modesty, and yet with confidence; and which he uses as an argument for prayer for them:

in all things willing to live honestly;
not only as men, but as ministers; faithfully dispensing the word of truth, without any regard to the favour or frowns of men, as good stewards of the mysteries of God; which contains in it another reason for prayer: the phrase, "in all things", is so placed, that it may be read in connection with either clause; and the sense is either that they exercised a good conscience in all things, in which they were concerned with God, or man, and among all persons, Jews and Gentiles; or that they were willing to live honestly in every respect, as men, Christians, and ministers.