Psalm 119:148 (NIV) "My eyes stay open through the watches of the night, that I may meditate on your promises."
Psalms 119:1 - 176
ESV - 1 Blessed are those whose way is blameless, who walk in the law of the Lord! 2 Blessed are those who keep his testimonies, who seek him with their whole heart.
For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.