I argue (because the bible supports it)
Sin is an act or want to be outside of God's expressed will.
Evil is an intense desire or malicious act of/to sin.
Not all sin is evil but all evil is sin.
Free will is the ability to choose to return to God through the grace and atonement offer to you through Christ. Do not confuse biblically based free will with the Greek philosophy that has one free to make any choice you want to make. In fact the opposite is true as we are Slaves to sin for life. Meaning no matter what we choose with the free will God gives us we will still sin.
Where the arguement from evil fails is it assume God is controlling what happens in this realm/this world. (If God is good His world can contain no evil) When in fact God gave all authority of this world over to man/adam. Man (at the fall) bound himself to sin, making him a slave to it. Elevating lucifer to the position of slave master to the ruler of this world. That is why when Chirst was tempted lucifer had the power and authority to offer up all of the kingdoms of this world, if only Christ would bow down to him. Otherwise the temptation would be meaningless.
So in a sense we have evil in this world because the rulers of this world have evil in their hearts.
Sin is an act or want to be outside of God's expressed will.
Evil is an intense desire or malicious act of/to sin.
Not all sin is evil but all evil is sin.
Free will is the ability to choose to return to God through the grace and atonement offer to you through Christ. Do not confuse biblically based free will with the Greek philosophy that has one free to make any choice you want to make. In fact the opposite is true as we are Slaves to sin for life. Meaning no matter what we choose with the free will God gives us we will still sin.
Where the arguement from evil fails is it assume God is controlling what happens in this realm/this world. (If God is good His world can contain no evil) When in fact God gave all authority of this world over to man/adam. Man (at the fall) bound himself to sin, making him a slave to it. Elevating lucifer to the position of slave master to the ruler of this world. That is why when Chirst was tempted lucifer had the power and authority to offer up all of the kingdoms of this world, if only Christ would bow down to him. Otherwise the temptation would be meaningless.
So in a sense we have evil in this world because the rulers of this world have evil in their hearts.