Monthly Archives: April 2013

The Square Root of Four is Two

Greg Koukl is a Christian apologist and author who frequently lectures on college campuses, attempting to engage students in thought-provoking dialog about how they perceive and comprehend the world, about matters of faith, and about questions of reality. During one such lecture at the University of California at Berkeley, he was conversing with a young man who was so inculcated with relativist nonsense, he could not admit that the square root of four was two. He could only repeat that that was what his culture had taught him to believe.

Hear me: whoever sees a helicopter leave the ground or a man-made probe successfully orbit the moon has witnessed the empirical confirmation that the square root of four is two. He has just beheld the proof that our mathematical abstractions are not cultural conventions, but are expressions of absolute truth. Logic, mathematics—these things are not conventional and local, but universal, immaterial, and absolute.

The young man at Berkeley, though, may have been thoughtful enough to see that an atheistic, naturalist worldview cannot account for such immaterial entities and abstract laws—thus he was forced to junk them, even when the plain reality is that they are absolute truths. In this, he may be more consistent than many other atheists. It is very difficult to account for the world with its intelligibility, our ability to think rationally and communicate with one another and exist in societies with at least some baseline of shared morals, without conceding the existence of one universal, immaterial, absolute lawgiver behind it all. What you see in many young people today is an inconsistent mixture of relativistic subjectivism and objective beliefs; the former because it is what they are taught they must think, and the latter because the image of God still seeps through from the inside and reality still impresses itself upon them from the outside. I pray that Christians would develop the knowledge and the vocabulary to discuss worldview issues so that people who are lost can be shown that there is a lens—the Christian faith—through which the world does make sense.

Further resources:


Called not to be the Same

Israel was chosen by God to be his people. From Moses until Christ, the Jews were set apart by God as a special possession for himself, and they served as a living picture, a living parable, for the kingdom of God on earth. As such, they were to be a holy people, differentiated from all the other people groups around them. In fact, some of the laws given to the Israelites were meant to figure this separation and purity, such as those in Deuteronomy 22:9 against sowing a field with two kinds of grain, wearing a garment of mixed fabrics, or plowing with an ox and a donkey together. Israel was a set-apart people. And they prefigured the New Testament church.

Christians—you and I—are the Israel God is now working with. Too many Christians want to minimize or eliminate the differences between themselves and the people around them. There is constant pressure brought upon us to conform to the reining modes of thinking of this age. Such pressure was heavy upon Israel, too, who was always dealing with temptation to worship the gods of the surrounding nations. We are beset with the pressure to worship the gods everyone around us is worshipping. Those gods include fornication, homosexuality, moral relativism, religious relativism, and the concept that God is not really angry at anyone (except child molesters and Hitler). Or the god that there is no God and that human beings are the result of a physics crapshoot. There is pressure to accept all religions as equally valid to Christianity, and not to make moral declarations based on the Bible. There is pressure to say that any sincere belief in God is good enough for him—you don’t have to approach God specifically through Jesus Christ.

But Christians are called to be set apart from the world in their thinking, their practice, and how they see reality. We are called to bring our thoughts into submission to Christ and to declare his truth to the world. We are called not be the same. People of the world hate the light of the Scripture because they love their sin. They love it so much, they will invent all kinds of arguments to defend their way of life and will slander those who say they are wrong, sometimes viciously. We must take courage in those times, trust God, and be faithful to the message he has delivered to us. If the Bible says marriage is a union between a man and a woman only, then so must we. If the Bible says no one can come to God except through conscious faith in Jesus, then so must we. If the Bible says you can’t divorce your spouse except in cases of adultery or abandonment, then so must we.

And we must say these things out loud. Christians are not called to a cloister. We are called to be separate from the world in the midst of the world. And this may be the hardest thing. We have friends in the world; we are not friends with the world. We go about our business in the world; we are not yoked to the world. We participate in civics as citizens of the world; we are wayfarers passing through. It takes courage to have a different mindset than the prevailing mindset of the culture around you. But the cultural mindset leads to death. We must not adjust the message of the Scriptures to accommodate modern beliefs. Instead, we call on the world to change to accommodate God’s message. Christians must stand firm in the face of opposition in proclaiming God’s eternal truths to the world and so save some. That is true love. The truth brings life. Do not be conformed to this present world, Christian, but be transformed by the renewing of your mind.

Naturalis Historia

Exploring the Intersection of Science and Faith in the Spirit of John Ray

Today's New Reason to Believe

Integrating Science and Faith


Faith Seeking Understanding

Tim Challies

Informing the Reforming

Christian Knight

For we do not wrestle against flesh and blood, but against the rulers, against the authorities, against the cosmic powers over this present darkness, against the spiritual forces of evil in the heavenly places. (Eph 6:12 ESV)

Board Game Pair-A-dice

Where the fun just keeps rollin'

Pure Soliloquy

"The discerning heart seeks knowledge" (Proverbs 15:14).

Operation Living Water

A biblical community with a voice

danieloquence. *

* it's like eloquence, only messier.

Tu Media Naranja

Our life on an urban frontier.

%d bloggers like this: