Helping a stranger may send chills and even hesitation to those who do faithful works, however trusting God to lead your inner works of faith is assured with safety for you will follow his leadership; and thus inspiring faith works to continue to those you know, and to strangers we also help in faith to bring God's praise.
YOU AND THE STRANGER WILL ROAR!
"Beloved, thou doest faithfully whatsoever thou doest to the brethren, and to the strangers. 3John: 1: 5 AKJV