John’s address to the church at Ephesus begins very positively as he commends them for the things they have done:
Revelation 2:2 I know your deeds, your hard work and your perseverance. I know that you cannot tolerate wicked people, that you have tested those who claim to be apostles but are not, and have found them false. 3 You have persevered and have endured hardships for my name, and have not grown weary.
It is certainly beneficial to do “good things.” But John highlight a weakness that we must also strive to overcome. It is not as much as what we do as it is who we are serving and where our heart is:
Revelation 2:4 Yet I hold this against you: You have forsaken the love you had at first. 5 Consider how far you have fallen! Repent and do the things you did at first. If you do not repent, I will come to you and remove your lampstand from its place.
This warning reminds me of Martha who was busily doing wonderful acts of hospitality but, unlike Mary, did not take time to just sit and listen to the Lord.