If God is not unchanging, then the whole basis of our faith begins to fall apart, and our understanding of the universe begins to unravel. This is because our faith and hope and knowledge all ultimately depend on a person who is infinitely worthy of trust - because he is absolutely and eternally unchanging in his being, perfections, purposes, and promises.

The devil's characteristic has been to originate sin and tempt others to sin

Satan was the originator of sin

When Jesus invites sinners, 'Come to me, all who labor and are heavy laden, and I will give you rest,' he immediately adds,'take my yoke upon you, and learn from me' (Matt. 11:28-29). To come to him includes taking his yoke upon us, being subject to his direction and guidance, learning from him and being obedient to him. If we are unwilling to make such a commitment, then we have not truly placed our trust in him.

God's glory is the created brightness that surrounds God’s revelation of himself.

The idea that all the words in Scripture are God's words in such a way that to disbelieve or disobey any word of Scripture is to disbelieve or disobey God.

It is not just that we exist and God has always existed, it is also that God necessarily exists in an infinitely better, stronger, more excellent way. The difference between God's being and ours is more than the difference between the sun and a candle, more than the difference between the ocean and a raindrop... God's being is qualitatively different.