God cannot be proven scientifically; how can we be sure He exists?
Don't worry, I won't use a cliche like, "You can't see the wind, but you can certainly feel the effects of it." But many of the things we place as most important in our lives--love, joy, happiness, forgiveness, friendship, and beauty--are essentially impossible to prove; however, that makes them no less real. I cannot look at a friendship under a microscope or place it on scales to measure its value in my life. I can ponder it, feel thankfulness for it, strengthen it, and treasure it. The same is true with my relationship with the Lord.
The question should really be, how can you explain science without the presence of an Almighty God? It amazes me that brilliant people would rather hang their hats on truly unprovable issues like evolution than have faith in God. Scripture has proven itself time and time again. It has never been wrong! How many scientists can claim that?
Name one, just one, scientist who came to earth as the fulfillment of hundreds of prophecies, then died to save mankind from their sins, and then rose from the dead after three days, proving His divinity! There is not one. The Bible has been tested through centuries and has never been disproved. It should be the most revered volume of scientific study that exists
"For the grace of God that bringeth salvation hath appeared to all men, teaching us that, denying ungodliness and worldly lusts, we should live soberly, righteously, and godly, in this present world; looking for that blessed hope, and the glorious appearing of the great God and our Saviour Jesus Christ; who gave himself for us, that he might redeem us from all iniquity, and purify unto himself a peculiar people, zealous of good works" (Titus 2:11-14).
Notice what the text of Scripture says, "..... has appeared to all men,". Not only has God appeared to all men, but His son Jesus Christ is coming again to rapture (catch up) those who have given their hearts to Him. While we wait for His second coming "we should live soberly, righteously, and godly, in this present world; looking for that blessed hope, and the glorious appearing of the great God and our Saviour Jesus Christ".