5. Trust … lean: these two words may be even closer together in thought than appears at first sight. G. R. Driver argues that the Heb. for trust had originally the idea of lying helplessly face downwards—an idea preserved in Jeremiah 12:5b (see RSV) and Psalm 22:9b (Heb., 10). Lean is not ‘incline’, but ‘support yourself’, rely (RSV).
6. Acknowledge is quite simply ‘know’, which contains not only the idea of acknowledging, but the much richer content of being ‘aware of’, and having ‘fellowship with’. And the promise that closes the verse offers more than guidance, though it includes it: He will make straight your paths (RSV), as he did for the unwitting Cyrus (Isa. 45:13; cf. Isa. 40:3) to bring him to his appointed goal.