This noun denotes the act of reminding or the state of remembering, often with the nuance of keeping something actively in mind rather than letting it slip into forgetfulness. Plato called writing a "drug of reminder" (hupomnēsis) rather than memory itself—it prompts recall rather than embeds knowledge. The New Testament uses reflect pastoral concern for keeping important truths present and active in believers' minds. All three occurrences appear in 2 Timothy and 2 Peter, epistles concerned with preserving apostolic truth after the apostles' deaths.