The image comes before the instruction
At the start of John 15, Jesus calls himself the true vine and calls his Father the gardener. The image is doing some of the work before Jesus asks his disciples to do anything. A branch needs the vine for its life. “Remain in Me” draws on a relationship the picture already makes visible.
Read the first five verses in sequence. The gardener tends the vine. The branches hold fruit because they are connected to it. By the time verse 5 says, “Apart from Me you can do nothing,” we have already seen why that would be true in the picture.
What does remaining look like?
The passage carries the word “remain” out of the vineyard. In verse 7 Jesus speaks about his words remaining in the disciples. In verse 9 he asks them to remain in his love. Verse 12 gives the instruction a neighbor: “Love one another as I have loved you.”
That sequence keeps the image from becoming vague. A disciple can hold on to something Jesus said and let it shape the way they treat someone. If the image of a vine is the beginning of the lesson, the people around the table are where it lands.
Follow one word through the chapter
Read verses 1 through 17 and pause at each use of “remain.” Notice what or who the word is attached to each time. Keep reading until the language becomes specific about love.
On a second reading, pick one sentence to carry into the day. If you stop with the command in verse 12, go back to verse 9 and read the two together. Listen for what the disciples have already received when Jesus asks them to give it to others.