When John writes to the church in Ephesus he picks up on the biggest issue that has weakened the witness of that church - they have lost their first love. More to the point, they have stopped loving the way they loved at first. This is not a critique on their ability to love, but rather an observation that they have lost their desire to love.
For a number of reasons this particular church had been distracted by other things - mainly trying to sort out false teachers in her midst. This problem had sapped most of their time and energy, thus leaving them very little time to LOVE the Lord, their neighbours and to care for each other in the church.
I think we all can relate to how easily this can happen. We don't plan to 'love less', but over time, our focus shifts onto other 'important' issues and soon we are giving God our leftover time, energy and focus.
Is this something that you are experiencing lately? If yes, then let us LISTEN to what the spirit is saying to us all.
Living in Grace