If you have the NASB like the picture above you counted 10 times the word abide in verses 1 – 16. In verse 16 you see I highlighted the word “remain.” That is because it is the same root word in Greek, meno (μένω). So 11 times in these 16 verses the Holy Spirit, through John, repeated the idea of "abide." That is a lot. It suggests that the concept may be important in John 15.
What else do you see repeated in this chapter? Also look for differences in the way words are repeated, that is are they modified differently as the passage progresses? Looking for repetition will unlock some major themes for you as you study your Bible.
More of what to look for coming.