Our Lord Jesus Himself said:

“And I tell you, ask and you will receive; seek and you will find; knock and the door will be opened to you. For everyone who asks, receives; and the one who seeks, finds; and to the one who knocks, the door will be opened. What father among you would hand his son a snake when he asks for a fish? Or hand him a scorpion when he asks for an egg? If you then, who are wicked, know how to give good gifts to your children, how much more will the Father in heaven give the Holy Spirit to those who ask him?”

(Luke 11:9-13)