The Evidence of Cosmology

At a glance

Relevant Scripture

"In the beginning God created the heaven and the earth."

Genesis 1:1 KJV

UECF.NET summary

Chapter 5 turns from biology to the cosmos. William Lane Craig, philosopher and theologian, presents the kalam cosmological argument: (1) whatever begins to exist has a cause; (2) the universe began to exist; (3) therefore the universe has a cause. Craig cites Big Bang cosmology and Borde-Guth-Vilenkin theorem-style reasoning to support a beginning. Strobel presents this as powerful evidence for a Creator. UECF.NET notes broad agreement among cosmologists that the observable universe had a hot, dense origin roughly 13.8 billion years ago; interpretation of that beginning is where science ends and philosophy begins.

Craig identifies the cause as timeless, spaceless, immaterial, and enormously powerful — attributes Christians associate with God. Physicists exploring quantum gravity, multiverse models, or cyclic cosmologies sometimes propose scenarios that challenge simplistic 'Big Bang proves God' slogans. Craig engages those proposals philosophically; they remain speculative and contested. Mainstream cosmology does not require theism, but it also does not simply erase the question of why there is something rather than nothing.

For readers, this chapter illustrates how apologetics often combines well-established science (an expanding universe) with metaphysical argument (causation, contingency). Both steps deserve scrutiny. Christians can rejoice that modern cosmology coheres with creatio ex nihilo without claiming every physicist agrees on God.

Main theological themes

• The Big Bang and finite cosmic history as context for theistic arguments
• Kalam cosmological reasoning — philosophical, not experimental, in its final step
• Distinguishing scientific models of the early universe from theological conclusions

Key ideas

• Craig uses cosmology to support a beginning; most cosmologists accept an early hot dense state while debating details before t = 10⁻⁴³ seconds.
• Multiverse proposals, if true, would shift but not necessarily eliminate questions about ultimate explanation.
• Strobel treats Craig's argument as near-decisive; philosophers disagree on whether causes apply outside time or whether quantum scenarios bypass them.
• 'In the beginning' remains Scripture's confession whether or not every cosmological model requires it.

Important concepts

• Kalam cosmological argument — Philosophical argument for a cause of the universe's beginning — associated with Craig.
• Big Bang cosmology — Scientific model of an expanding universe from a hot early state — strongly supported by observation.
• Borde-Guth-Vilenkin theorem — Result cited by Craig suggesting eternal inflation models may still require a beginning — interpretation debated.

Related Bible references

• Psalm 90:2
• Isaiah 42:5
• Hebrews 11:3
• Revelation 22:13
• Acts 17:24

Practical Christian application

• Read a popular article on cosmic microwave background — note what is observation versus interpretation.
• Use this chapter to discuss with a skeptic the difference between 'universe had a beginning' and 'God caused it.'
• Sing a hymn about God's eternity and reflect on finitude of created things.

Questions for study