Freire Costa was born to José Wellington Bezerra da Costa and Vanda Freire Costa. His father José was a pastor of the Assembleias de Deuschurch. He has 5 siblings: José Wellington, Samuel, Joel, Marta, and Rute. His sister Marta is also a politician, and his brother José Wellington is also a pastor. Freire Costa is married to Léa Costa and has two daughters: Vanessa and Cristiane, as well as three grandchildren. Like his father and brother he is also a pastor in the Assembleias de Deus church. Because of his faith Freire Costa is strongly opposed to abortion.