God wants your whole heart. Not just a part of it or a heart that is divided, but all of it. It can be a challenge to be "all in" on something. Seems like such a commitment, and typically it is. Being "all in" requires us to put out some personal effort, maybe to set aside or eliminate some other time consuming things to make room for whatever it is that we're "all in" on. Being "all in" with God will also require effort and thoughtful attention to what our priorities are. But it also comes with this promise from God.
2 Chronicles 16:9a (NASB) "The eyes of the LORD move to and fro throughout the earth that He may strongly support those whose heart is completely His."
What jumped out at me in this verse is the the words "strongly support." Who to better have the strong support of then the Lord? The God of all creation watching over you everyday, in all circumstances, ready and able to give you the support you need.
Praise God for his grace, his perfect love and his support for those that belong to him.