This excerpt is from the blog back in June 2008. Phil shows how true Biblical manliness is far different from popular notions about it.
Biblical manliness is about authentic character. It's not about bravado, and it's not about boyishness. Going out into the woods with a bunch of other men, putting on war paint, making animal noises, telling scary stories around a campfire, and then working up a good cry might be good, visceral fun and all, but that has nothing to do with the biblical idea of manliness.
Real manliness ("mature manhood"—Ephesians 4:13) is defined by Christlike character. Not just the Gentle-Jesus-meek-and-mild-style character, but the full-orbed fruit of the Spirit rounded out with strength, courage, conviction, and a stout-hearted willingness to oppose error and fight for the truth—even to the point of laying down your life for the truth if necessary.
When the apostle Paul writes about the characteristics of true Christian manhood in Ephesians 4, he focuses on one vital mark of spiritual maturity: "That we may no longer be children, tossed to and fro by the waves and carried about by every wind of doctrine, by human cunning, by craftiness in deceitful schemes" (v. 14). You want to be a man as opposed to a little boy? Grow up in your grasp of the truth. Get a grip on sound doctrine and quit being influenced by every new trend and every undulating breeze that blows across the evangelical landscape. Quit chasing the evangelical fads. Get anchored in the truth, and learn to defend it.
That's the main mark of true manhood Paul singles out: doctrinal stability—and along with that are some clear implications: you need to be certain of what you believe. You need to understand it. You need to be able to defend it against everything—ranging from the changing winds of whatever happens to be in style at the moment all the way to human trickery and the cunning craftiness of Satan himself. Because the enemy will offer all kinds of counterfeit doctrines that look good and sound OK—false doctrines where the error is so carefully nuanced it's hard to put your finger on what's wrong with it. He will tempt you to set aside what is precise and carefully defined in place of dumbed-down doctrinal formulas that don't necessarily sound dangerous—but are.
[...]
If you want a taste of what real manhood looks like, do some gospel ministry in a hostile environment. Stand up for the truth in some venue where it is under attack. Get a solid, manly grasp on the Bible and stand up and teach its hard truths in a way that helps make the truth clear to people who are struggling to get it. Contend earnestly for the faith when some nice-sounding heretic wants you to sit down and have a friendly dialogue about it. Be the kind of man Paul describes here: someone who is steadfast and sure, with a solid grasp of classic biblical truths that have gone out of vogue. Stand against popular opinion when you know you should, and do it every time the opportunity arises.
That's the real gauge of "mature manhood" as Paul describes it in Ephesians 4:13-14. A grown-up man is firm and steadfast in the truth. That means he is disciplined, knowledgeable; anchored; he understands the truth well and is devoted to it. He has his senses trained for discernment.