Psalms 116:10,11

I believed, therefore have I spoken— I believed (for I will speak it; I was very low), I said in my haste, The whole race of man is a lie. These two verses express the low state of spirits to which he had been reduced. Thus Mudge. Green, referring the verses to David, translates them thus; I spoke, because I believed it: (I was in great affliction) and I said in my flight, [namely, from Absalom] All men are deceitful. Mr. Fenwick has it,

I now believe; but yet I own, So very low I once was brought, My hurried spirits made me almost say, Men are all lies;
That is mere vanity. This would have been the case, if Christ had not prevailed in those dreadful conflicts with the powers of darkness, to which for our redemption he submitted, and which seem to be here pointed at.