John 14:10a Do you not believe that I am in the Father, and the Father in Me? The words that I speak to you I do not speak on My own authority; but the Father who dwells in Me does the works. Believe Me that I am in the Father and the Father in Me, or else believe Me for the sake of the works themselves.
John 14:23 Jesus answered and said to him, "If anyone loves Me, he will keep My word; and My Father will love him, and We will come to him and make Our home with him."
Unless we love Jesus by keeping His word, the Father will not be in us. Our Lord Jesus kept God's word and will, so the Father was in Him.
John 10:37-38 "If I do not do the works of My Father, do not believe Me; but if I do, though you do not believe Me, believe the works, that you may know and believe that the Father is in Me, and I in Him."
Signs and wonders can only be performed by God and not by man. So, whoever consistently perform signs and wonders, then we know that the Father is in him, for the Father in him is performing all these miracles. This is different from those 'filled with the Holy Spirit' whom God uses to perform the miracle just once to meet the need.
[ Note - whoever is filled with the Holy Spirit, he will be given the gifts of the Holy Spirit to meet the needs then. 1Cor 12: 7-11]
John 5:19 Then Jesus answered and said to them, "Most assuredly, I say to you, the Son can do nothing of Himself, but what He sees the Father do; for whatever He does, the Son also does in like manner."
However, our Lord could only perform the miracles which God wanted Him to do otherwise He could not do them.
Matt 15:24 But He answered and said, "I was not sent except to the lost sheep of the house of Israel."
Jesus was sent by God only to minister to the Jews and He was not authorized to heal non-Jews.
Matt 15:28 Then Jesus answered and said to her, "O woman, great is your faith! Let it be to you as you desire." And her daughter was healed from that very hour.
Out of God's mercy all those (no- Jews) having great faith in Him, will also be healed (including the Centurion in Mat 8:5-13 and Naaman the leper, in 2 Kings 5:5-14). Thus, our Lord Jesus was able to heal the Canaanite's daughter and the Centurion's servant.
1 Tim 4:1-2 Now the Spirit expressly says that in latter times some will depart from the faith, giving heed to deceiving spirits and doctrines of demons, speaking lies in hypocrisy, having their own conscience seared with a hot iron,
So when these unlearned and covetous televangelists and pastors, display their pride and healing powers in public (without God's approval), God will not perform miracles for He is our Lord and King, not our servant. These depraved televangelists and pastors, who are without conscience, will therefore resort to lies (false miracles).
Brethren, have nothing to do with them otherwise we may be found to be partakers of their deceptions.