which leads to life, and there are few who find it.”
We cannot walk the narrow path until we have entered the narrow gate. But we cannot assume that because we have entered the narrow gate we are now finished. Most people lay stress on the gate, and their goal is to get people just far enough through the gate that they can claim salvation. But the narrow gate is only the beginning.
The narrow gate only opens the door to the narrow way. It is the narrow way which leads to Life, and few find it. Fewer still walk to the end of it.