My word promises that when as few as two or three are gathered in my name that I am there in the midst of them. Have you ever been in the presence of other Christians and not sensed that I was present at all?
There is no contradiction here. Not every gathering of my people is done in my name. They that feared the Lord spoke often one to another, and a book of remembrance was written for those who feared the Lord and thought on my name. If you associate primarily with Christian friends make a conscious effort to acknowledge my presence among you. Your friends should not resent this mention, but someone has to take the initiative to go first.