John Gill Commentary Psalms 119:170

"Let my supplication come before thee: Deliver me according to thy word." — Psalms 119:170 (ASV)

Let my supplication come before thee
The same with his "cry" in (Psalms 119:169); only expressed by another word, signifying a petition for grace and favour, in an humble and submissive manner; which it is entreated might be received and accepted, as before;

deliver me according to thy word ;
of promise, such as that in (Psalms 50:15); meaning from all troubles and afflictions; out of the hands of all his enemies, and from the power of sin, Satan, and the world; and from all fears of wrath, ruin, and destruction. Kimchi observes, that this is not to be understood of a deliverance of the body from distress, but of the soul from the stumbling block of sin.