I don’t recall where, but someone asked me for the citation of St. Augustine of Hippo (+430) who said that he would not accept the Scriptures were it not for the backing of the Catholic Church. Here it is:
ego uero euangelio non crederem, nisi me catholicae ecclesiae conmoueret auctoritas. … But I would not believe in the Gospel, except that the authority of the Catholic Church moved me to do so.
This is from Contra epistulam Manichaei quam uocant fundamenti liber unus 5.6 (abbreviated as c. ep. Man. 5,6)