John Trapp on Psalms 25:8

Verſ. 8. Good and upright is the Lord] i.e. Gracious, and righteous,' or faithfull; and hence it is, that our God is mercifull, as Pſal. 116.5. hence it is, as that we poor Creatures are not overwhelmed, aut magnitudine peccatoram, aut male calamitatum, either with the greatneſſe of our ſins, or the multitude of our miſeries.

Therefore will hee teach ſinners in the way] i.e. Senſible ſinners, meek and mortified, as in the next verſe, ſelf-judging, and ſelf-outed; thoſe will hee teach to turn to him, and to walk before him in all well-pleaſing; and this Doctrin of direction muſt needs bee good, becauſe hee is good, and certain, becauſe he is upright.