There is a particular kind of satisfaction in dragging a yellow marker across a verse. The line glows. The page looks worked-on, prayed-over, lived-in. You close the cover feeling like something happened. And then a week later, someone asks what you read, and you can picture the bright stripe perfectly — its place on the page, the way it bled slightly at the edges — but you cannot, for the life of you, recall what it said.
This is not a failure of faith or of attention. It is one of the most reliable findings in the study of how memory works, and once you understand it, you can stop blaming yourself and start reading in a way that actually stays.
The marker feels like learning. It usually isn't.
In 2013, a team of cognitive psychologists led by John Dunlosky reviewed the most common study techniques people use and ranked them by how well they actually work. Highlighting and underlining landed near the bottom. Not because marking text is harmful, but because it does almost nothing on its own. The act of choosing what to highlight requires barely any thought, and the bright line you leave behind asks nothing of you when you return to it.
What highlighting does do is feel good. And that feeling is the trap.
The illusion of fluency
Psychologists call it the illusion of fluency. When information is easy to take in — a clean page, a familiar phrase, a verse you've read a dozen times — your brain reads that ease as a sign that you know it. Smoothness masquerades as mastery. The verse slides by without resistance, and you mistake the absence of friction for the presence of understanding.
Highlighting amplifies this. The next time you flip past that page, your eye snags on the yellow, the words feel known, and you nod along. But recognizing something is not the same as being able to recall it, much less live by it. Recognition is the brain saying I've seen this before. Recall is the brain saying I can bring this back when I need it. They are different muscles, and the marker only trains the first.
Why difficulty is the point
The researcher Robert Bjork spent decades arguing for what he called desirable difficulties — the counterintuitive idea that the conditions which make learning feel harder in the moment are often the ones that make it last. When your mind has to work to retrieve or reconstruct something, that effort is what carves the memory deeper.
This flips the usual instinct on its head. We tend to think the goal of reading scripture is to make it go down smoothly. But a verse that costs you something to hold onto is a verse you are more likely to still have next month. The struggle isn't an obstacle to the reading. It is the reading.
This is why the most effective alternatives to highlighting all share one feature: they force a small, productive effort.
What works instead
Close the book and say it back. After you read a passage, look away and try to reconstruct it — not word for word, but its shape, its claim, what it asks of you. This is retrieval practice, and it is among the most studied and most powerful learning techniques we have. The act of pulling something back from memory strengthens the path you'll use to find it again. It will feel harder than re-reading. That difficulty is the work doing its job.
Put it in your own words. When you translate a verse into plain language — what is this actually saying to me? — you trigger what psychologists call the generation effect. Information you produce yourself is remembered far better than information you simply absorb. A verse you've paraphrased has passed through your own mind, and your mind keeps better hold of what it has handled.
Ask it a question it has to answer. Instead of marking a line, interrogate it. Why does this come right after that? What would change if I believed this on Tuesday afternoon? Elaboration — connecting new material to things you already know and care about — builds more retrieval routes to the same memory. The more hooks a verse has into your actual life, the easier it is to find later.
Come back to it spaced out, not all at once. Reading the same passage three days running, with a gap each time, beats reading it three times in one sitting. Each return, after you've half-forgotten, is a small act of retrieval — and the forgetting between visits is not a bug. It's what gives the next reading something to strengthen.
The honest discomfort of doing it right
Here is the catch, and it's worth naming plainly: every one of these methods feels worse in the moment than highlighting. They're slower. They expose what you don't actually remember. You will close the book some mornings feeling like you accomplished less, precisely because you did the thing that works.
That gap — between what feels productive and what is productive — is the whole reason highlighting endures. It rewards us immediately and quietly fails us later. Effortful reading does the opposite. It frustrates us now and pays out for months.
So the next time you reach for the marker, you don't have to throw it away. Highlight if you like the way it looks. But don't let the yellow line be the end of the encounter. Let it be a flag that says come back here and do the harder thing — close the page, say it back, put it in your own words, and let the verse cost you a little. What costs you something is what you get to keep.
Where this leaves you tomorrow morning
This is the quiet philosophy behind Anchor. Instead of handing you a wall of text to skim and stripe with color, it gives you one verse, a short reflection that asks you to do something with it, and a gentle nudge to return — spaced across your days the way memory actually prefers. It's built to create the small, productive friction that makes scripture stay, rather than the smooth scroll that lets it slip away. If you've ever finished a reading feeling like nothing landed, you might find that a little less, done a little harder, lands a great deal more. You can meet it where you are at https://amen.lumenlabs.works.