1 Cor 7:14

7:14 made holy. A striking affirmation of the special character of the home in which at least one parent is a believer (1:2 note). In Old Testament language, the whole family is regarded as being in covenant with God. Even the spouse who refuses to believe comes under the influence of God’s work—much more so the children who are not old enough to profess their faith. Accordingly, Reformed theology has viewed this verse as providing part of the rationale for the baptism of children.