Psalms 86:7

“In the day of my trouble I will call upon thee, etc.] David had his troubles, both inward and outward, before and after he came to the throne, in private and public life; and every good man has his troubles; and there are some particular times or days of trouble; which trouble arises from different causes; sometimes from themselves, their corruptions, the weakness of their grace, and the poor performance of their duties; sometimes from others; from the persecutions of the men of the world; from the wicked lives of profane sinners, and especially professors of religion, and from the spread of false doctrine; sometimes from Satan and his temptations; and sometimes from the more immediate hand…”

“In the day of my trouble I will call upon thee - That is, I do it now; I have done it; I will do it. The language implies a habit, or a steady purpose of mind, that in all times of trouble he would make God his refuge. It was this fixed purpose - this regular habit - which was now the ground of his confidence. A man who always makes God his refuge, who has no other ground of reliance, may feel assured that God will interpose and save him. For thou wilt answer me - This also implies a fixed and steady assurance of mind, applicable not only to this case, but to all similar cases. He had firm confidence in God at all times; an unwavering belief that God is a hearer of prayer. This is a just…”

“Psa 18:6, Psa 34:4-6, Psa 50:15, Psa 55:16-18, Psa 77:1, Psa 77:2, Psa 91:15, Psa 142:1, Psa 142:3; Isa 26:16; Lam 3:55-57; Jon 2:2; Luk 22:44; Heb 5:7 Psalms 86:8”