Contradiction with 1 Kings 19:12
This verse describes God speaking in a "still small voice," contrasting with the dramatic display of thunder and lightning in Exodus 20:18.
1 Kings 19:12: And after the earthquake a fire; [but] the LORD [was] not in the fire: and after the fire a still small voice.
Contradiction with John 1:18
States that no one has seen God at any time, which contradicts the Israelites' perception of God's presence in Exodus 20:18.
John 1:18: No man hath seen God at any time; the only begotten Son, which is in the bosom of the Father, he hath declared [him].
Contradiction with Matthew 5:48
Calls for perfection in God's followers, while Exodus 20:18 shows fear and imperfection in handling His presence.
Matthew 5:48: Be ye therefore perfect, even as your Father which is in heaven is perfect.
Contradiction with Hebrews 12:18-19
Suggests a new covenant where God's approachability contrasts with the fearsome experience at Sinai in Exodus 20:18.
Hebrews 12:18-19: For ye are not come unto the mount that might be touched, and that burned with fire, nor unto blackness, and darkness, and tempest,
Contradiction with Deuteronomy 12:31
Condemns practices of fearing God through sights like fire, which contradicts the Sinai encounter in Exodus 20:18.
Deuteronomy 12:31: Thou shalt not do so unto the LORD thy God: for every abomination to the LORD, which he hateth, have they done unto their gods; for even their sons and their daughters they have burnt in the fire to their gods. [to the: Heb. of the]