Numbers 9:14 And if a stranger shall sojourn among you, and will keep the passover unto the Lord; according to the ordinance of the passover, and according to the manner thereof, so shall he do: ye shall have one ordinance, both for the stranger, and for him that was born in the land.
When the Jews celebrated the passover they were to invite the stranger to observe the passover with them. They were sharing their faith. The person might not be one of them but they were to invite them. Everyone ought to be worshipping God so get them involved it says.
I want to invite others. I want to share my faith. I want to see others come to know the Lord Jesus like I have and do!