I agree, Religion is useless. Religion can be blind and dead. The Anti-Christ will seem to be a religious person. 2 Thessalonians 2:3-4 "Let no man deceive you by any means: for that day shall not come, except there first come a falling away first, and that man of sin be revealed, the son of perdition; Who opposeth and exalteth himself above all that is called God, or that worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God."
Religion is a practice of rituals and ceremonials which can easily stifle the move of the spirit. Religion does not normally invite the Spirit of God but rather religion seeks its own. Mark 7:3 "For the Pharisees, and all the Jews, except they wash their hands oft, eat not, holding the traditions of the elders." Religion practices the doctrine and commandments of men, laying aside the commandments of God. In rejecting God's commandments they make the Word of God of none effect.
A relationship with God is only possible because of what Jesus done by his life, death and resurrection. John 1:1-3 "Let not your heart be troubled: ye believe in God, believe also in me. In my Fathers' house are many mansions: if it were not so, I would have told you. I go to prepare a place for you. And if I go and prepare a place for you, I will come again, and receive you unto myself: that where I am, there ye may be also." If we read on we will see that more promises are given to his followers. John 1:15-21. "If you love me, keep my commandments. And I will pray the Father, and he shall give you another Comforter, that he may abide with you for ever; 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."
As you see there is a difference in Religion and Relationship.