Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.
Years ago, I had actually witnessed to a few JW's. I was pleasantly surprised because they won't let you witness to them or get one word in edgewise. God gave me the wisdom to speak with them. As I told them about their own teachings, their mouths were on the floor when I finished speaking with them. Before my conversion to Christianity, I had studied with them. Gods' timing was so spot on. Only He can open and close that door if He choose to. God used me in a powerful way to bring a relative of mine who was studying with JW's back to Jesus. I had no idea he was backslidden until the Lord revealed it to me. I was under severe attack and was very ill. When I look back, it was well worth the attack. Talk about spiritual warfare.