John Trapp on Psalms 44:18

Verſ. 18. Our heart is not turned back] Metaphora à ſtudie, ſaith Vatablus, As thoſe that run a race ſtand not at a ſtay, much leſs turn back again; ſo neither have we either ſtopped or ſtepped backward, but advanced ſtill toward the mark, having Nondum metam (We have not yet attained) for our Motto, as Saint Paul had;Phil. 1.28. 1 Pet. 3.6. Phil. 3.12. being in nothing terrified by our adverſaries, nor afraid with any amazement.

Neither have our ſteps declined] We have watched over every particular action; Gods people are beſt when at worſt.