Westminster Larger Catechism - Question 10

What are the personal properties of the three persons in the Godhead?

It is proper to the Father to beget the Son,^a and to the Son to be begotten of the Father,^b and to the Holy Ghost to proceed from the Father and the Son from all eternity.^c

^a Heb. 1:5-6, 8
^b John 1:14, 18
^c John 15:26; Gal. 4:6