First of all, let’s see if the Bible teaches the possibility of life (extraterrestrial) on other planets.
14 And God said, “Let there be lights in the expanse of the sky to distinguish between the day and the night, and let them be signs to mark the seasons and days and years. 15 And let them serve as lights in the expanse of the sky to shine upon the earth.” And it was so. 16 God made two great lights: the greater light to rule the day and the lesser light to rule the night. And He made the stars as well. 17 God set these lights in the expanse of the sky to shine upon the earth, 18 to preside over the day and the night, and to separate the light from the darkness. And God saw that it was good. -Genesis 1:14-18 BSB
On the fourth day of creation, God made the sun, the moon, and the stars (including planets) for mankind, who were created on the sixth day. God created the earth and the lights of the expanse, not only to shine light upon the world and to know the seasons but to provide through the energy of the sun’s light, the plant’s photosynthesis to make glucose (sugars) and oxygen so that mankind can survive, thrive and multiply on the face of the earth. It doesn’t seem that God created other planets and suns for other alien creatures. Let’s dig a little deeper into Scripture to see if it becomes clear.
19 When you look to the heavens and see the sun and moon and stars—all the host of heaven—do not be enticed to bow down and worship what the LORD your God has apportioned to all the nations under heaven. -Deuteronomy 4:19 BSB
The Hebrew word for “nations” means people (Strong’s #5971). Deuteronomy 4:19 destroys the notion of nonhumans—an alien race living on other planets far from us, who seem to be very advanced in technology that defies the laws of physics. There’s only one type of beings capable of doing that, and they are not from this dimension, which I will get into in Part 2. The verse is crystal clear that the universe and everything it contains was made for us. God also created the universe for another purpose. It was to reveal His glory and that He exists and everything visible [and invisible] came into existence through Him. See below.
1 The heavens declare the glory of God; the skies proclaim the work of His hands. 2 Day after day they pour forth speech; night after night they reveal knowledge. 3 Without speech or language, without a sound to be heard, 4 their voice has gone out into all the earth, their words to the ends of the world. In the heavens He has pitched a tent for the sun. -Psalm 19:1-4 BSB
19 For what may be known about God is plain to them, because God has made it plain to them. 20 For since the creation of the world God’s invisible qualities, His eternal power and divine nature, have been clearly seen, being understood from His workmanship, so that men are without excuse. -Romans 1:19-20 BSB
The sun, moon, and stars reveal to humanity that God is real and shows His omnipotence, omniscience, and omnipresence. God allowed men to see His “footprints on the sand” so they may seek Him. How can one know he’s not alone on an isolated island? If he comes across and sees footprints on the sand.
In Part 2, I will get into the alien’s physical look, supernatural powers over men, and how they can defy the laws of physics.