WCF 10.3.
Elect infants, dying in infancy, are regenerated, and saved by Christ, through the Spirit, (Luke 18:15–16, Acts 2:38–39, John 3:3, 5, 1 John 5:12, Rom. 8:9) who worketh when, and where, and how He pleaseth: (John 3:8) so also are all other elect persons who are uncapable of being outwardly called by the ministry of the Word. (1 John 5:12, Acts 4:12)