Charles H. Spurgeon on Psalms 119:116

Uphold me according unto thy word, that I may have. It was so necessary that the Lord should hold up his servant, that he could not even live without it. Our soul would die if the Lord did not continually sustain it, and every grace which makes spiritual life to be truly life would decay if he withdrew his upholding hand. It is a sweet comfort that this great necessity of upholding is provided for in the word, and we have not to ask for it as for an uncovenanted mercy, but simply to plead for the fulfilment of a promise, saying, "Uphold me according to thy word." He who has given us eternal life hath in that gift secured to us all that is essential thereto, and as gracious upholding is one of the necessary things we may be sure that we shall have it.

And let me not be ashamed of my hope. In Psalms 119:114 he had spoken of his hope as founded on the word, and now he begs for the fulfilment of that word that his hope might be justified in the sight of all. A man would be ashamed of his hope if it turned out that it was not based upon a sure foundation; but this will never happen in our case. We may be ashamed of our thoughts, and our words, and our deeds for they spring from ourselves; but we never shall be ashamed of our hope, for that springs from the Lord our God. Such is the frailty of our nature that unless we are continually upheld by grace, we shall all so foully as to be ashamed of ourselves, and ashamed of all those glorious hopes which are now the crown and glory of our life. The man of God had uttered the most positive resolves, but he felt that he could not trust in his own solemn determination: hence these players. It is not wrong to make resolutions, but it will be useless to do so unless we salt them well with believing cries to God. David meant to keep the law of the Lord, but he first needed the Lord of the law to keep him.