When we feel unable to worship God or incapable of remaining focused on Him it's because we've allowed His greatness to diminish in our minds. This is a great passage in Psalm 119 to be reminded of how awesome He is (and consequently how great His word is as well).
"Your word, O Lord, is eternal; it stands firm in the heavens."
"Your faithfulness continues through all generations..."
"You established the earth, and it endures."
"Your laws endures to this day, for all things serve You."
God is above all, He created everything. All things exist because of Him and all things hold together through Him. It's all about Him! And the psalmist goes on to describe his response to God because of these things.
"If your law had not been my delight, I would have perished in my affliction."
"I will never forget your precepts."
"To all perfection I see a limit; but your commands are boundless."
As the psalmist remained in God's word, he felt rescued from his affliction. He found hope, he learned of his strength in God. He began living from the strong foundation that God's word gives us.
May we find new strength and grow in our love as we remain in His word.