Jesus spoke of faith as a seed. He’s referring to the fact that it will grow…if planted properly.
Faith grows…when it is properly planted in the human heart.
Do not worry about the size of your faith. Do not think that it is insufficient. Just keep it planted. That means use the faith you have; rely on it. If you use the faith you have today, it will be larger tomorrow.
If you wait until you have more faith to put it into practice, you will never have more faith. But if you put into practice the faith you have – no matter how small it may seem to you – it will grow.
Unpracticed faith is unplanted seed.