In life we often say that something is untrue when it doesn't make sense. A child tells a story and we look at them with a sideways grin and say, "Well honey, that doesn't make any sense. Please tell Mommy the truth."
In our world when something is honest, right, shows integrity, or is trustworthy - the story, facts, details, and ideas usually fit together in a moral, scientific, or reasonable way. This is the kind of truth we can understand. For example: If the cookie jar is empty, it makes sense that little Bobby stole the last of the goodies when his parents weren't looking. It makes less sense (or seems untrue) to say that the dog jumped up on the counter, learned how to take the lid off the jar, devoured the last cookie, put the lid back on, and jumped back down without anyone seeing it. The doggie excuse seems even more unlikely when Bobby has had a history of snitching from the cookie jar.
So silly as I am, I'm a Christian. I try to follow Christ. I choose to believe that Jesus was the son of God. I choose to believe that God does love and value all people. I choose to trust that God tells the truth even when the truth is incomprehensible.
Guide me in your truth and teach me, for you are God my Savior, and my hope is in you all day long.