There are three points I would like to bring to your attention.

1. Only God is good:

Matthew 19:17: And he said unto him, Why callest thou me good? there is none good but one, that is, God: but if thou wilt enter into life, keep the commandments.

2. There are only two sides:

Matthew 12:30: He that is not with me is against me; and he that gathereth not with me scattereth abroad.

Matthew 6:24: No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.

3. Every good impulse, thought, action is because of God.

James 1:16 - 17: Do not err, my beloved brethren. Every good gift and every perfect gift is from above, and cometh down from the Father of lights, with whom is no variableness, neither shadow of turning.

I think the rest can just be derived from these facts and are self explanatory.

There are three points I would like to bring to your attention.

1. Only God is good:

Matthew 19:17: And he said unto him, Why callest thou me good? there is none good but one, that is, God: but if thou wilt enter into life, keep the commandments.

2. There are only two sides:

Matthew 12:30: He that is not with me is against me; and he that gathereth not with me scattereth abroad.

Matthew 6:24: No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.

3. Every good impulse, thought, action is because of God.

James 1:16 - 17: Do not err, my beloved brethren. Every good gift and every perfect gift is from above, and cometh down from the Father of lights, with whom is no variableness, neither shadow of turning.

I think the rest can just be derived from these facts and are self explanatory.

The Self-Explanatory part:

1. Adam chose to serve the enemy - As the Devil has no good in him (separated from God), Adam lost the ability to do good. In Adam, the whole human race lost this ability resulting in total depravity.

2. However God interfered and granted the ability to resist sin to man (Genesis 3:15: I will put enmity...). This ability is not intrinsic and comes from God as explained by James.

This is the reason we find some good in man - because God (the Holy Spirit) strives with men helping them to resist the evil impulses and thoughts.

Genesis 6:3: And the Lord said, My Spirit shall not always strive with man, for that he also is flesh: yet his days shall be a hundred and twenty years.