“Come to me, all you who are weary and burdened, and I will give you rest. Take my yoke upon you and learn from me, for I am gentle and humble in heart, and you will find rest for your souls.”
Matthew 11:28 

Therefore, since the promise of entering his rest still stands, let us be careful that none of you be found to have fallen short of it.  For we also have had the good news proclaimed to us, just as they did; but the message they heard was of no value to them, because they did not share the faith of those who obeyed.
Hebrews 4:1-2  

Remain in me, as I also remain in you. No branch can bear fruit by itself; it must remain in the vine. Neither can you bear fruit unless you remain in me.
John 15:4

“I am the vine; you are the branches. If you remain in me and I in you, you will bear much fruit; apart from me you can do nothing.”
John 15:5

Very early in the morning, while it was still dark, Jesus got up, left the house and went off to a solitary place, where he prayed.
Mark 1:35  

“Come to me, all you who are weary and burdened, and I will give you rest. Take my yoke upon you and learn from me, for I am gentle and humble in heart, and you will find rest for your souls.”
Matthew 11:28