The apostle Paul writes this like he is the race of his life or like he is climbing a mountain that most people would give up on. We must also understand that there are more that don’t want you to make, it compared to those who do. It is like the old TV game shows called “It’s a Knockout” & “Wipeout” where contestants would try to make it past obstacles and the opposition were there trying to distract them and knock them of course so that they would have to go back to the start again. There was the slowly rotating log above the water which may seem a challenge to many but when you add in the opposing team waiting to release their swinging “knock them off the pole” bags, only the contestants who could keep their cool and an eye on what the enemy was trying to do, would make it through. In real life it is exactly what our enemy the devil is always trying to do, and he does this by distracting us and knocking us of the course when we least expect it by hitting us with bags of sickness and disease, depression and discouragement. The more knocks we receive, the more discouraged and weaker we become and the more focus on yourself and less on Jesus, but Heb 12:2 says, Looking unto Jesus the author and finisher of our faith.
Now we know from Romans 10:17 which tells us how faith comes, It says: “So then faith comes by hearing, and hearing by the word of God”.  But there is a difference between hearing the word and knowing the Word. Faith comes to you by hearing, and hearing by the word, but there are people all around the world who hear the word of God every day who still have no faith or can't release faith. Also seeing something happen like a miracle will encourage your faith and give you hope, but it will not give you faith because the word does not say "faith comes by seeing".
The deep is not what you know, the deep is whatever is not operational in your life. The deep is letting go of the rope that has you safely tied up to the shore where all the other boats are. We have to develop a trust relationship with the Holy Spirit, then things will begin to happen.