This may be a children’s song by David MacGregor, but the text is a fine invitation to participate in the great feast, alluding to the the parable. (Luke 14 and Matthew 22 – I prefer Luke.)
It is a “rollicking 12 bar blues”.
The sheet music is free at his website. I converted it to pdf in case you have trouble downloading it in Word format.
I made a backing, that is a little more restrained than his: