Baptist love that verse because all it involves is believing and doesnt include repentance. Or does it?
Lets roll back and look at the context
Acts 16:29-31 "
Then he called for a light, and sprang in, and came trembling, and fell down before Paul and Silas,30 And brought them out, and said, Sirs, what must I do to be saved?31 And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house."
Kneeling down with fear suggest Godly repentance. Kneeling is an act of submission. It could be he sensed a supernatural event in his neck of the woods when God shook the prison at midnight?
James 4:6 says God resist the proud but gives grace to the humble. You can't therefore come to God in the state of a wicked perverted heart. That is the rule for everyone is it not? Yet....Did Paul come to God in this state? No he did not. Therefore he was chosen... Mathew 22:14 "For many are called, but few are chosen."