Be faithful constantly

Psalm 119:97 “Oh, how I love your law! I meditate on it all day long.” Our God’s love for each of His children is beyond comprehension.  How can the God of the Universe and beyond care about each of us as much as He does?  What motivates Him for such love?  If anyone reading this can explain please respond.  All I know is the absolute truth–He does!  Doesn’t that motivate us to be faithful to Him?