"By faith we understand that the universe was created by the word of God, so that what is seen was not made out of things that are visible." - Hebrews 11:3
I find that when supporting the idea, the evidence, that God created all things ...I usually summarize with this statement. "Well, I didn't create me." That is a known fact. I have no such power. And if that is true, then the next logical conclusion is that an intelligent designer created me. And if that is true, then it is quite simple, and plausible, to conclude ...this same designer could establish the Son of Man, through which eternal security was established. Do I know, per any concrete evidence, that God is who He says He is, through His inspired word? My response is echoed in Hebrews 11:3. Faith is not wishful thinking. It is solid, conclusive thinking. Deductive reasoning, based on the evidences made obvious through creation (Romans 1:20). If God created all, then a miraculous, sinless, life-giving Jesus is not a leap for me.
