The Greek that is translated as “pledge” or similar in English is translated in Matumbi as “first.” “We tried to think about what the main point of the word was, and we determined that the main point is that there is an initial payment of something that guarantees a larger payment later. This Matumbi word, which comes from the word for ‘first (hinting that something else is coming),’ is a word used to talk about buying a house or other large purchase, if you can’t pay the whole thing, you give the first payment so that the buyer knows you’re serious.” (Source: Pioneer Bible Translators, project-specific notes in Paratext)