Charles H. Spurgeon on Psalms 94:13

Rest from the days of adversity. To rest from the days of adversity is not to be disturbed by them to such an extent as to murmur, or despond in spirit, but to trust in God, and in silence of the mind and affections expect from God deliverance. See Isa 7:4; Isa 26:20, &c. Moreover he says not ymyk in, but ymym from the days of adversity, an expression of greater elegancy and wider range of meaning. For there is a reference to the primary form of the verb vqv to sink, to settle down, as when the dregs of disturbed liquor fall to the bottom; when it is applied to the mind when shaken with a great agitation of cares, and full of bitterness. The dregs, therefore, sprung from the days of adversity, are pointed out as settling down. Besides, not only is rest of mind while the evils continue indicated, but also while they are ceasing, since m, from, has here, as not infrequently elsewhere, a negativ force. Venema.