We have to face reality: most Christians will never enter full-time Christian work. In addition, most full-time Christian workers will spend most of their lives as lay people, because they are not going to be able to stay in their ministry. And if you are going to learn how to be blessed by God, you need to learn how to be blessed by God as a lay person.
Solomon possessed more wisdom that any man who ever lived, and while he served God, Israel reached great success. When he turned to other gods after his many wives corrupted him, Solomon watched as Israel fell backwards. But God never took away Solomon's wisdom. Solomon had the unusual ability to see the work of God through a man's success and failure, and he had the opportunity to use his wisdom in both cases.
Later, when he was old, tired, and discouraged, Solomon wrote the book of Ecclesiastes. He had the wisdom of a lifetime to record, and he recorded this:
Ec 12:13 ¶ Let us hear the conclusion of the whole matter: Fear God, and keep his commandments: for this is the whole duty of man.