In Undivided Devotion

A heart in undivided devotion to God to the same extent God's heart is in undivided devotion to you. 

Psalm 86:11 Teach me your way, Lord, that I may rely on your faithfulness; give me an undivided heart, that I may fear your name.

Ezekiel 11:19 I will give them an undivided heart and put a new spirit in them; I will remove from them their heart of stone and give them a heart of flesh.

1 Corinthians 7: 35 I am saying this for your own good, not to restrict you, but that you may live in a right way in undivided devotion to the Lord.