Behold, God does not reject the blameless, nor will He strengthen the hand of evildoers.
Bildad here, in the close of his discourse, sums up what he has to say in a few words, setting before Job life and death, the blessing and the curse, assuring him that as he was so he should fare, and therefore they might conclude that as he fared so he was. 1.
Commenting on Job 8:20-22
Till he fill thy mouth with laughing, and thy lips with rejoicing. Directing himself to Job; and suggesting, that if he was a perfect, sincere, and upright man. God would not cast him away utterly, but help him out of his present circumstances, and restore him to prosperity; and not leave him until he had filled his heart with so much joy, that his mouth...
Bildad regards Job as a righteous man, who has fallen into sin. God will not cast away a perfect man--(or godly man, such as Job was), if he will only repent. Those alone who persevere in sin God will not help (Hebrew, "take by the hand," Psa 73:23; Isa 41:13; Isa 42:6) when fallen.