To the point of the adult discussion, one would believe God would deceive humankind if one believes the Universe or Earth is only 6000 years old when all that God has created and we are gradually coming to understand point to the universe being billions of years old and Earth at least 3+ billion years in the making to now.
An alternate perspective is that God lets humans generate principles of Physics which point to a very old Universe (from our perspective this far since Creation by Him) based upon principles in Physics which when tested over and over and over and relied upon to make advancements in energy use and technologies. That perspective is also fraught with petulence on The Creator's part, in allowing such a deception/duplicity to stand and humans to base their daily welfare upon the trick. God is not a trickster.
You have a perspective which requires magic thinking. Whereas believing that God has a means to Create what we see and He sees it as being seven or less days old but we seeing it from our position as billions of years old is more rational. You really ought to take the time to read Shroeder's exposition. It is a praise to God, not an opposition to His sovereignty.
So where in ‘your’ Bible does God stop lying? The genealogies show a clear and distinct line from the 1st man and woman, Adam and Eve, thru to Jesus Christ. I simply subscribe to the plain reading of the Word of God - to do any other is to do an injustice to God and His Word imho.
Of course it does also warm against people adding to and subtracting from the Word of God on the very last page if you have bothered to read.
Oh and btw the holy physics you keep referring to are wrought with assumptions on top of assumptions. Put simply science can not repeat history therefore science can not do history nor tell anyone with 100% certainty when, where, and why something in the past happened. But the Bible does and it does it time after time after time as science reluctantly shows for those reading the Word and paying attention.