He is also a narrow door. which does not look good to those on the outside. But to those who make it in. it is the most beautiful site they have ever seen. And would never want to go back even if they could
That reference is not about how hard the christian life is. That reference is reproving how believers will broaden the way in the worship place by including the worship of the Holy Spirit with the Father & the Son when John 5:23 specifically stated the Father's will on how He wants us to honor Him and that is by the only way of the Son. Jesus had given the commandment of His invitation on how we are to come to God the Father by and that includes worship and that is by the only way of the Son by honoring Him and glorifying the Son and by Him, God the Father as well ( Philippians 2:5-11 )
The Holy Spirit is God but He has been sent to dwell in us to lead us in testifying of the Son ( John 15:26 ) to glorify the Son ( John 16:14 ) and He does that through us ( John 15:27 ) as the glory of God is in His Son ( John 13:31-32 )
There are sinners that worship spirits and relates to spirits in the occult and the only way God can call them away from their spirits and from bringing their practices of any focus on the spirits, is to seek the face of the Bridegroom in worship, prayer, and fellowship.
That is why when they had broaden the way in the worship place by including the Holy Spirit in the spotlight, seducing spirits comes in and take their eyes off of the Son in worship to chase after them to receive "again" after a sign, thinking they were the Holy Spirit coming and going in the place. It does not matter that YOU KNOW that is not the Holy Spirit when people fall down in confusion because they were honoring the Holy Spirit or addressing the Holy Spirit in worship or had been when this supernatural phenomenon had occurred as they relate their experience to others and others follow; and sure enough, sometimes the phenomenon happens again and anything you say falls on deaf ears.
The narrow way of Matthew 7:13-27 & Luke 13:24-30 is about all those apostate movement of the spirit that is a result when believers had broaden the way in the worship place to include the worship of the Holy Spirit with the Father & the Son as Matthew 7:24-27 testify that by that iniquity, many house have fallen in reference to believers falling down by that spirit.
The solution is to narrow the way back to the straight gate; to focus only on honoring the Son in the worship place of any one seeks to honor the Father in worship at all. That is what scripture says & the indwelling Holy Spirit is pointing to because He would never share in the spotlight of Whom He seeks to glorify thru us, but the spirits of the anti christ would as anti christ as used in scripture, means "instead of Christ" or to be clear, "instead of the Son" since Jesus is THE Christ.
So believers need to stop using that reference as if living the chrstian life is hard; when Jesus said His yoke is easy and His burden is light and we shall find rest unto our souls by learning of Him in trusting Him at His word that He will do it. That reference is about keeping our eyes on the Bridegroom in worship to be that abiding bride of Christ by the grace of God & His help when trusting Jesus Christ as our personal Good Shepherd in helping us to follow Him in being His disciples in speaking of the Son in seeking His glory and by Him, the glory of God the Father.