Christians are under the new covenant and not the law given by Moses
Jesus was baited by [religious] lawyers as to the "greatest commandment" with the intent that no matter what he answered that they would accuse him. Jesus' reply stunned them . He answered " to love God with all your heart.....and love your neighbor as yourself".
So anything that is not love is sin.
Modern sins are embezzlement, vote fraud, lying to all Americans, saying falsehoods about others, gossiping, not respecting personal property or information, identity theft, narcissism, illegal surveillance, credit fraud, fraudulent borrowing, false attribution, government unionization, adultery, drug abuse, child abuse, spouse abuse, and more.
Obama lies, encourages sin, and rewards immoral behavior.