Yes
48 But he answered and said unto him that told him, Who is my mother? and who are my brethren?
49 And he stretched forth his hand toward his disciples, and said, Behold my mother and my brethren!
50 For whosoever shall do the will of my Father which is in heaven, the same is my brother, and sister, and mother
So how can both a Muslim and a Christian be your brother? Any institution that considers itself transcendent of objective religious truth makes an idol of itself. That includes: education, employment, athletics, government and fraternities.
2 Corinthians 6:14
Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?
1 Kings 13 And king Solomon sent and fetched Hiram out of Tyre
Solomon corrupted Israel by his reckless misogyny with the pagans
2 Kings 23:13
And the high places that were before Jerusalem, which were on the right hand of the mount of corruption, which Solomon the king of Israel had builded for Ashtoreth the abomination of the Zidonians, and for Chemosh the abomination of the Moabites, and for Milcom the abomination of the children of Ammon, did the king defile.