Another scripture that carefully explains the importance of staying with God is in Galatians 3:3. NLT version says
“How foolish can you be? After starting your Christian lives in the spirit, why are you now trying to be perfect by your own effort?”.
We see again that our lives must be in tune with the spirit of God to effectively live. “We start in the spirit, we continue in the spirit and we end in the spirit”, Pastor always says. So, since our walk with God, our work for God and fruitfulness in all areas of our lives can only be gotten from God, it makes perfect sense to confidently rely on Him as well.