"I say to you, he who believes in Me, the works that I do he will do also; and greater works than these he will do, because I go to the Father. And whatever you ask in My name, that I will do, that the Father may be glorified in the Son. If you ask anything in My name, I will do it." John 14:12-14 

Nothing can be covered

Everything shall be known 

For nothing is hidden that shall not become evident, nor anything secret that shall not be known and come to light. Luke 8:16