God's Commandments are being violated if you lie.
By lying you violate the 5th, (by dishonoring your parents by lying) the 9th, the 2nd (created a god to suite yourself), and the 1st Commandment. (Didn't put God first)
When you steal you violate the 5th, the 8th, the 2nd, and the 1st Commandments.
By breaking a Commandment it actually is blasphemous to God. We are made in his image after all, so God sins? There goes the 3rd also.
If we really think about it, we are even violating the 4th since Jesus is now our Sabbath Rest. (Matthew 11:28-30, Hebrews 4:9-10) We are not "keeping it Holy" (Exodus 20:8) so there it goes. When you sin you are breaking, which ever sin PLUS, the first 5 Commandments.
You are breaking a great deal of Commandments with one simple lie.
Let's compound that. Let's just say, you break God's Laws (Lie, steal, lust, or covet) 5 times a day. You lied once, lusted once, stole something, etc. In one year, that would be 1,825 sins. If you live to 85 and started sinning at, lets just say age 15, @ 70 years of sinning you would have broken God Laws 127,750 times.
Compounded again, if you sinned one time, and thus breaking 5 other Commandments each time totaling 6 sins, and did that 5 times a day that would be 766,500 sins in a lifetime!!!
Now take that times just 6 billion people and that is some 4.6 quadrillion sins for the planet on an average.
Now, lets multiply that by many generations throughout history...
Dude, that is a lot of sins!!!
You're made in God's image. When you lie, you're calling God a liar.
Now can you see that sinning is not just a little thing? Its a big, big deal!!