Psalms 119:76

Let, I pray thee, thy merciful kindness be for my comfort,
&c.] Shown in the provision and promise of a Saviour; in the forgiveness of sins through him; a discovery and application of which yields comfort under afflictions;

according to thy word unto servant;
a word of promise, in which he had assured him of his love, grace, mercy, and kindness; and that he would continue it to him, and comfort him with it: to make such a promise, and show such favour, was an instance of condescending grace to him, who was but his servant, and unworthy of his regard.