'Invitation' in the Bible

If an unbeliever gives you an invitation and you are disposed to accept it, eat whatever is put before you, and ask no questions for conscience' sake.

Therefore, holy brethren, sharers with others in a heavenly invitation, fix your thoughts on Jesus, the Apostle and High Priest whose followers we profess to be.

And he said to me, "Write as follows: 'Blessed are those who receive an invitation to the Marriage Supper of the Lamb.'" And he added, still addressing me, "These are truly the words of God."