1 Timothy 5:10

Have a reputation. Her past life demonstrates her character and faith. Who brought up her children well. Either her natural children, or foster children. This demonstrates her ability. Received strangers. Shown her attitude and love by helping those made homeless through persecution. Washed the feet. This shows humility and a willingness to serve others. Paul surely is thinking of John 13:5-15. To all kinds of good works. This sums it all up. She is one who has practiced what she claimed to be.