I’ve read the Bible all the way through more than once. The Holy Spirit has never “moved” me to believe that because a man looks a little too long at another woman, he should be stoned.
Nor I. The Bible says: "But I say unto you, That whosoever looketh upon a woman to lust after her hath committed adultery already in his heart." (Matthew 5:32)
Note that phrase "in his heart." This is where sin has its start. "Then when lust hath conceived, it bringeth forth sin: and sin, when it is finished, bringeth forth death." (James 1:15)
God says adulterous "acts" are to be punished with death, not adulterous "thoughts". But adulterous thoughts may lead to acts. Don't even go there.
We may not like what the Bible says, but God himself spoke these things (Leviticus 20:1) to Moses: "And the man that committeth adultery with another man's wife, even he that committeth adultery with his neighbor's wife, the adulterer and the adulteress, shall surely be put to death." (Leviticus 20:10)
Both are to be put to death, especially the man. John 8 says the woman was caught in the act: "They say unto him, Master, this woman was taken in adultery, in the very act." (John 8:4)
Where was the guy? These jews sought to trick Jesus in the unlawful application of the law. The law requires that BOTH be put to death, not just the adulteress. Jesus knew this. He's the author of the law, he spoke these words to Moses.