The Word sanctifies us through the truth. The truth of the Father's Word. The Word IS the power over all the power of the enemy.

The enemy has no actual power over the born-again, because we do not live in fear of death or anything short of it. Our flesh may experience "dread" because sin dwells in the flesh and dreads its eventual demise, but we do not fear because we are born of the Spirit and live forever. The enemy uses dread in our flesh to lead (tempt) us into fear, receiving him because the enemy is the spirit of fear.

The children of God live courageously by the Word, the Spirit of Truth, in pursuit of the will of the Father, having faith in Him. The enemy is a tempter who tries to get people to think God, His Word, the truth of the scriptures, or His ways are inadequate or insufficient. The enemy tempts our flesh with dread and lets us take on fear whenever we choose to think God is not sufficient to protect us. It tries that with everyone. Think of it this way, those who are dreadful become fearful.

Jesus is a son of God. He has/had the power over all the power of the enemy. When we become born again, we become sons of God through Jesus-the Word, and have the power He has by living in Him, the Word

Therefore, the power to become a son of God IS the way to receive the "power to tread on serpents and scorpions, and over all the power of the enemy," and Jesus gave it to us if we believe Him.

• But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name... John 1:12.

The source is the Spirit of God.

The born again (the saved when our bodies die) are members of the true Royal Family of the Father in the Spirit. We know the Father as our father-Father, as a son in the Spirit, and Jesus as our Brother. We have the authority of the family, the true Royal Family to do our Father's will here on earth in Jesus's stead!

• Verily, verily, I say unto you, He that believeth on me, the works that I do shall he do also; and greater works than these shall he do; because I go unto my Father. John 14:12.
• Now then we are ambassadors for Christ, as though God did beseech you by us: we pray you in Christ's stead, be ye reconciled to God. 2 Corinthians 5:20.

Yes! The Bible says we live "in Him" and get what he has/had. When you became born again of the Spirit, you became a child of God in the Spirit. As a child of God, you are a new creation and have the power to tread on serpents and scorpions and over all the power of the enemy, and nothing by any means shall hurt you. 

Remember, the will of our Father is knowing we are His children, the born again of His Spirit. His Spirit most assuredly has THE power over all the power of the enemy. Of course, if you don't believe it, then the enemy has again deceived you into thinking the ways of the Father are insufficient for you. Don't be duped.

As the born again, you and I do the will of the Father here, and we glorify Jesus whenever we do. Of course, we rejoice in the fact our name is written in the Book of Life and that we live forever and praise Jesus for it. Thus, how "bad" can a "bad day" ever be for us who live forever in heaven when our body dies?

Yes, according to the same terms Jesus had, i.e., as the Father wills!

For the born again, the Holy Ghost from the Father is also our helper, now, in this lifetime on earth. The Father reveals Himself to us according to His will by the Word and through the leading of the Holy Ghost. 

• But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you. John 14:26.
• But when the Comforter is come, whom I will send unto you from the Father, even the Spirit of truth, which proceedeth from the Father, he shall testify of me: John 15:26.
• Even the Spirit of truth; whom the world cannot receive, because it seeth him not, neither knoweth him: but ye know him; for he dwelleth with you, and shall be in you. John 14:17.

Remember, the Holy Ghost (Spirit of Truth) raised Jesus from the dead because He (the Holy Ghost) is the witness to the Word that lived in Jesus and now in us. He will raise us (the born again) from the dead when our mortal bodies die.

Before our bodily death, the Spirit of Truth quickens our mortal bodies, helping us to avoid sin as we live by the will of God and the faith of Jesus as we do the works He did. 

• But if the Spirit of him that raised up Jesus from the dead dwell in you, he that raised up Christ from the dead shall also quicken your mortal bodies by his Spirit that dwelleth in you. Romans 8:11.
• But the anointing which ye have received of him abideth in you, and ye need not that any man teach you: but as the same anointing teacheth you of all things, and is truth, and is no lie, and even as it hath taught you, ye shall abide in him. 1 John 2:27.

Disciples are the ambassadors of Jesus now in this lifetime.

• Now then we are ambassadors for Christ, as though God did beseech you by us: we pray you in Christ's stead, be ye reconciled to God. 2 Corinthians 5:20.
• Verily, verily, I say unto you, He that believeth on me, the works that I do shall he do also; and greater works than these shall he do; because I go unto my Father.  John 14:12.

Fake Christians do not love the truth and shall perish like the rest of the unsaved.

• And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved. 2 Thessalonians 2:10.

(When the rapture occurs, only the born again will be taken out of this world.)