3 John 1:5
"Beloved, you are acting faithfully in whatever you accomplish for the brethren, and especially when they are strangers;”
It's risky to help others, especially strangers you don't know. They might turn on you or take what you have. But Gaius acted in faith, helping them anyway. As the Holy Spirit led him, he treated them kindly, then helped them on their way.
Not every person standing on a street corner with a sign asking for help is honest but if your eyes and your heart are speaking to you to help someone, do it. If you see a need in your neighborhood, at work, in the church and the Spirit is tugging at you, follow the leading.
"Do not forget to entertain strangers, for by so doing some have unwittingly entertained angels." (Hebrews 13:2)
The Truth
“Give, and it will be given to you: good measure, pressed down, shaken together, and running over will be put into your bosom. For with the same measure that you use, it will be measured back to you.” (Luke 6:38)