It is not: Matthew 7:6; Mark 7:27-28; Acts 22:21-22; Romans 9:4; Galatians 2:15; Ephesians 2:12; Philippians 3:2; Revelation 22:15
dogs: Τοις κυναριοις: strong:G2952, "to the little dogs," lap dogs, etc., the diminutive of κυων: strong:G2965, a dog. The Jews, while they boasted of being the children of God, gave the name of dogs to the heathen, for their idolatry, etc.