YES – The Watchtower 11/1/1967 p. 650 par. 6 – “Let God Arise, Let His Enemies Be Scattered”
In the third month thereafter the Israelites and the “mixed crowd” reached Mount Sinai, and there Jehovah God made a national covenant or contract with them.
YES – The Watchtower 9/1/1972 p. 529 par. 11 – Help from On High
all such temptations come upon Christians today who are also in covenant relationship with Jehovah, since they are the antitypes of those ancient peoples, the natural Israelites and the “vast mixed company.”
UNSTATED – The Watchtower 3/15/1982 p. 19 par. 16 – Loyalty to “the Kingdom of Our Lord and of His Christ”
No less a degree of loyalty must be proved today by that class of dedicated, baptized persons who were prefigured by the “vast mixed company” who left Egypt with the Israelites and who were present at the making of the Law covenant at Mount Sinai.
NO – The Watchtower 3/15/1983 pp. 8-9 – Who Should Partake?
It is noteworthy that there was a vast mixed company of non-Israelites who escaped from Egypt along with the Israelites. Although they enjoyed benefits as a result of this covenant they were not included in it.
NO – The Watchtower 2/1/1998 p. 11 par. 13 – Jehovah Is a God of Covenants
When Jehovah made his covenant, it was only with Israel; those of the “vast mixed company,” although present, were not named as participants.