Thus says the Lord: “Let not the wise man boast in his wisdom, let not the mighty man boast in his might, let not the rich man boast in his riches, but let him who boasts boast in this, that he understands and knows me, that I am the Lord who practices steadfast love, justice, and righteousness in the earth. For in these things I delight, declares the Lord.” Jer. 9:23-24
What do we boast in? Let me re-phrase the question: What do we trust in? Many people trust in their wealth, the material possessions that they can accumulate. Perhaps power, the ability to command and lead people, and impose your will on others. I like to trust in knowledge and wisdom, to show people how much I know, teach them how to make good decisions. Wealth, power, and wisdom are not bad. They are very useful tools. But, ultimately, should we trust in them, take pride in them, boast in them?
Companies go bankrupt, or the economy collapses and investments become worthless. Elections pull down leaders from positions of power, or you might be passed over for a promotion. Their could be a new finding in your field of study that proves your ideas worthless, or your advice might turn out to have been misleading. You might make a mistake.
But, if you trust in God, what can undermine that? We might lose power, wealth, wisdom. We might even lose our physical life. But what does that matter to our eternal being? What harm can the physical do to the spiritual? If we want trust in something solid, trust in God. Know him, understand him, and act like him. Do the right thing, the loving thing, the just thing. Use what wealth, power, and wisdom you do have to help others. This is a type of boasting that does not draw attention to yourself, but to God.