Without the empowerment of the Holy Spirit we can accomplish nothing.
I am the Vine, you are the branches. He who abides in Me, and I in him, the same brings forth much fruit; for without Me you can do nothing. (John 15:5 MKJV)
We can do nothing without God. Even Jesus was led to the wilderness in Matthew 4:1 before being tempted by the Spirit. Simeon was led to the temple, “And he came by the Spirit into the temple. And as the parents brought in the child Jesus, to do according to the custom of the law concerning Him,” (Luke 2:27 MKJV). How much more do we need to be led by the Spirit of God to do anything?
Jesus tells us the comforter, or the Holy Ghost, will teach us all things and bring to our remembrance whatsoever Jesus has said to us. (John 14:26). And the comforter, the Spirit of truth shall testify of me, Jesus and you will bear witness, (John 15:26). And in John 16 He tells us that the Spirit will guide you into all truth. He will show us things to come. He will glorify Jesus.
The Holy Spirit is the Spirit of God, the Spirit of Christ, the divine nature of God, the Godhead dwelling in us, in our heart as the New Covenant contracts seal. We must realize “He who is in you is greater than he who is in the world” (1 John 4:4 MKJV).
Examples of Jesus casting out devils, perceived men’s thoughts, returned by the power, and started His ministry by the Holy Spirit.
Mt 12:28 But if I cast out devils by the Spirit of God, then the kingdom of God is come unto you.
Mr 2:8 And immediately when Jesus perceived in his spirit that they so reasoned within themselves, he said unto them, Why reason ye these things in your hearts?
Lu 4:14 ¶ And Jesus returned in the power of the Spirit into Galilee: and there went out a fame of him through all the region round about.
Lu 4:18 The Spirit of the Lord [is] upon me, because he hath anointed me to preach the gospel to the poor; he hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised,