I was not in attendance at the most recent gathering 2020 in Idaho, nor in counsels on the ground, so I'm not sure the exact wording of the current invitation but here is one consented upon in the past. 

The First Invitation to the Rainbow Gathering

 We, who are brothers & sisters, children of God, families of life on earth, friends of nature & of all people, children of humankind calling ourselves Rainbow Family Tribe, humbly invite:

All races, peoples, tribes, communes, men, women, children, individuals -- out of love.

All nations & national leaders -- out of respect

All religions & religious leaders -- out of faith

All politicians -- out of charity

to join with us in gathering together for the purpose of expressing our sincere desire that there shall be peace on earth, harmony among all people. This gathering to take place beginning July 1, 1972, near Aspen, Colorado - or between Aspen & the Hopi & Navaho lands - on 3000 acres of land that we hope to purchase or acquire for this gathering -- & to hold open worship, prayer, chanting or whatever is the want or desire of the people, for three days, but upon the fourth day of July at noon to ask that there be a meditative, contemplative silence wherein we, the invited people of the world may consider & give honour & respect to anyone or anything that has aided in the positive evolution of humankind & nature upon this, our most beloved & beautiful world -- asking blessing upon we people of this world & hope that we people can effectively proceed to evolve, expand, & live in harmony & peace. - Amen -