Our ancestors on the Sinai greatly defiled God's Sabbath, leading Almighty God to pour out His fury upon them in the wilderness, to utterly consume them. Ancient Israel's pitiful failure to keep the Sabbath led to punitive judgment from God, proving that neglecting the Sabbath greatly complicates life through severing contact with Almighty God. Obedience simplifies life by maintaining divine favor.
The warning God gave to our forebears on the Sinai also applies to the Israel of God (Galatians 6:16), who are admonished to learn from their horrible example of what not to do (I Corinthians 10:6). God's people are obligated to keep the sanctified holy Sabbath to avoid disastrous spiritual consequences, focusing life on God's will rather than on rebellion.