Basil of Caesarea — as excerpted in the Catena Aurea on Luke 3:15-17

“(lib. de Spir. Sanct. c. 12.) But because he says, He shall baptize you with the Holy Spirit, let no one admit that baptism to be valid in which the name of His Spirit only has been invoked, for we must ever keep undiminished that tradition which has been sealed to us in quickening grace. To add or take away ought thereof excludes from eternal life.”