If you are a parent, you know how much you put into rearing your children. Similarly, most preachers devote their entire selves and lives to growing a congregation. Knowing those things, you can appreciate what John said,
“Look to yourselves, that we do not lose those things we worked for, but that we may receive a full reward” (2 John 1:8).
John had worked for the salvation of lost souls that comprised the church to whom he wrote, but if the members there were not careful, they could end up lost. Therefore, he warned them to look to themselves, so that rather than losing the things for which John had worked, he, and those to whom he preached and taught, would receive a full reward.
Likewise, I do not write these devotionals, encouraging you to read through the Scriptures every year, because it makes me feel good or something, but I do it that you might save your soul, and that I might benefit from your salvation.