Judg 4:21, Judg 5:24, Acts 13:47-48, Acts 16:14
In the Old Testament, a Gentile woman killed a Gentile king. Because the woman did not believe in Gentile gods, but believed in God. (Judges 4:9,21, Judges 5:24)
Judges 4:9 And she said, I will surely go with thee: notwithstanding the journey that thou takest shall not be for thine honour; for the Lord shall sell Sisera into the hand of a woman. And Deborah arose, and went with Barak to Kedesh. 21 Then Jael Heber's wife took a nail of the tent, and took an hammer in her hand, and went softly unto him, and smote the nail into his temples, and fastened it into the ground: for he was fast asleep and weary. So he died.
Judges 5:24 Blessed above women shall Jael the wife of Heber the Kenite be, blessed shall she be above women in the tent.
All the Gentiles to whom God was ordained to give eternal life believed in Jesus as the Christ. (Acts 13:47-48, Acts 16:14)
Acts 13:47 For so hath the Lord commanded us, saying, I have set thee to be a light of the Gentiles, that thou shouldest be for salvation unto the ends of the earth. 48 And when the Gentiles heard this, they were glad, and glorified the word of the Lord: and as many as were ordained to eternal life believed.
Acts 16:14 And a certain woman named Lydia, a seller of purple, of the city of Thyatira, which worshipped God, heard us: whose heart the Lord opened, that she attended unto the things which were spoken of Paul.