Consider Nehemiah chapter 3. This chapter is a list of different people and families with their corresponding section of the wall to rebuild. Nehemiah 3:20 caught my eye...
After him Baruch the son of Zabbai zealously repaired another section, from the Angle to the doorway of the house of Eliashib the high priest.
Nehemiah 3:20
Of all the people, listed, this is the only one of whom it is specifically mentioned that he "zealously" worked on it. So how am I working my my section of the wall? Am I building with zeal and passion, or am I putting a mediocre effort into it? We each have section of the wall -- a part in God's kingdom; it's up to each of us how we serve!