“And I will give them an heart to know me, that I am the LORD: and they shall be my people, and I will be their God: for they shall return unto me with their whole heart.” (Jeremiah 24:7)
There is no such thing as serving God half-heartedly. We are either all of His or none of His. His command has always been: “You shall love Me with all your heart.”
Having a perfect heart toward God doesn’t mean you’ve matured to a place where no more growth is possible. It means you are serving Him completely at every stage of your journey. You are all for God as a baby Christian; all for Him as you grow in stature; all for Him in your prime; all for Him at the end of your earthly sojourn. In order to be perfected, our heart needs to be continually perfect toward God. Without whole-hearted love and service toward God we don’t grow.
The half-hearted believer is a backslider in danger of falling away from God. Someone wisely said, “Christianity is like riding a bicycle – if you don’t keep going forward you will fall off.” You don’t have to wait for some future day to be sold-out for the Lord. He is worthy of your all today. He gave His all for you so you would give your all for Him. Our great God will settle for nothing less than He deserves.