Faith is a journey; faith is a series of revelations. It has a beginning and a finish; listening and obeying Jesus, he is the author and finisher of our faith. When we hear him speaking to us, he authors our faith by laying the foundation of our faith on rock.
"Whoever comes to me, and listens to my words and does them, I will show you what he is like. He is like a man who built a house, and dug deep and laid the foundation securely built on a rock; and when the flood arose, the torrent beat violently upon that house, but could not shake it because it was founded on a rock". Luke 6:47-48.
Jesus finishes our faith when you see him bring our salvation:
he will appear the second time, not to bear sin, but to bring full salvation to those who are waiting for and expecting him. Heb 9:28
For the grace of God that brings salvation .. Tit 2:11
looking for the mercy of our Lord Jesus Christ to bring eternal life. Jude 1:21
Receiving the end of your faith - the salvation of your souls. 1 Pet 1:9