John Trapp on Galatians 4:6

Verſe 6. Crying Abba, Father] God hath no ſtill-born children. Paul was no ſooner converted, but behold he praied, Act. 9.11. The ſpirit of grace is a ſpirit of ſupplication, Zech. 12.10. And when God ſends this ſpirit of praier into our hearts, it is a ſure ſign, that he means to anſwer our deſires: like as when we did our children ſay, I pray you, father, give me this, we do it not, but when we mean to give them that which we teach them to ask.