If I then, your Lord and Teacher, have washed your feet, you also ought to wash one another's feet

John 13:4
If I then, your Lord and Teacher, have washed your feet, you also ought to wash one another's feet.

Lord Yshua teaches us by example of how to serve and it includes the most common and trivial tasks. The example above is about washing people's feet. When we are ready and willing, God has already placed us in His perfect location, and can start using us for His glory. There is no perfect time and perfect place. God has appointed the correct time and place where we are and we should be ready to respond.