The fire of the altar was lit by the same God, but it was the duty of the priests to keep it, God has sent us his Holy Spirit, he has sent us his fire, but it is necessary that you and I keep it burning in our lives.
"Altar", in Hebrew means "Place of Sacrifice" - we need to meet him every day. Romans 12: 1, tells us to present ourselves as a living sacrifice, we no longer need a kid, nor an ox, the sacrifice that today corresponds to us as Priests of the new covenant is our own life, you and I have to present ourselves to God all days for his fire to burn everything in us and thus be a living sacrifice to him.