The real question is how do you know that you are hearing from the Lord.
When I first got saved I was 13 and didn't know the word of God. The Lord told me that I would see Him at his return (this was 50 years ago). However, I had heard that no one knows the day or hour so it seemed that this word was a contradiction of that word (I didn't know about Simeon or Anna yet). So I told the Lord I needed some kind of confirmation so that I knew I was really hearing from Him.
After that prayer I was coming home from a Boy Scout hike, the man driving the car was the father of two of the kids. He used to be an olympic downhill skier but now had Parkinson's disease and had a bad episode earlier that day. We had just gotten off the parkway and were near home. The road had a speed limit of 35 and double yellow lines when he started to speed up, crossed the double yellow lines and passed the car in front of us. That got my attention, but even worse he was standing on the brake with one foot while his other foot was mashed down on the accelerator. He needed help and I was in the passengers seat so I tried to knock his foot off the gas but only wound up knocking his other foot off the brake. The car sped up rapidly and now he was weaving in and out. I got down and was trying with my hands to knock his foot off while he was pulling on the parking brake and the car was smelling of burning brake pads. I'm thinking good thing no one was coming the other way when I hear this screeching horn, look up over the dash and we are heading for a head on crash when he threads the needle between a car on our right and this car coming at us. We are doing about 80 at this point when we blow through a red light and my whole body is shaken by the horn of an 18 wheeler, I look through my window on the right and all I see is the grill of truck. We are now going downhill at about 80 and at the bottom of the hill in about 200 yards there are big boulders. No way we make the turn. I grab his foot with both hands, pull it off the accelerator and then put my foot on the brake and we come to a stop right in front of a boulder. I'm thinking no harm no foul. We didn't hit anyone, no ticket, this could have been worse. But then I turn to see the three kids in the back and they were white as a sheet, they were sure we were going to die. That shocked me because that had never crossed my mind. But as I thought about it I realize it should have. The logical thing was to think we were going to die. Why didn't I.
I prayed about this and then Lord told me because you haven't seen me return yet. That is how I learned that word was true.