According to Thomas Aquinas, God is a simple, immutable, and eternal being. He is not corporeal, meaning that he does not have a body.

The problem of evil is a complex philosophical problem that has been debated by philosophers for centuries. It is often divided into three main parts: the problem of natural evil, the problem of moral evil, and the problem of theodicy.

The teleological argument, also known as the argument from design, is an argument for the existence of God based on the observation that the universe appears to be designed or ordered in a way that suggests the existence of a designer or creator.

The moral argument, also known as the argument from morality, is an argument for the existence of God based on the observation that moral values appear to be objective and universal. This suggests that there must be a moral lawgiver or source of these values, which is often identified as God.

The evidential argument, also known as the argument from evil, is an argument against the existence of God based on the observation that there is evil in the world. This suggests that either God does not exist, or that he is not all-powerful or all-good.

There are a number of different responses to the problem of evil that attempt to explain why evil exists in a world created by a good God. Some of these responses include the free will defense, the soul-making defense, and the greater good defense.

The fall of man defense is a response to the problem of evil that suggests that evil entered the world as a result of the fall of Adam and Eve in the Garden of Eden. This defense is based on the Christian doctrine of original sin.

The soul-making defense is a response to the problem of evil that suggests that evil is a necessary part of a good world because it allows for the development of moral character. This defense is based on the idea that humans can only develop moral character by overcoming challenges and difficulties.

The greater good defense is a response to the problem of evil that suggests that evil is a necessary part of a good world because it allows for the greater good. This defense is based on the idea that God allows evil to exist in order to bring about a greater good, such as the salvation of souls.

The free will defense is a response to the problem of evil that suggests that evil is a result of the misuse of free will. This defense is based on the idea that God created humans with the ability to choose between good and evil, and that humans are responsible for the evil that they choose to do.

The creaturely limitations defense is a response to the problem of evil that suggests that evil is a result of the limitations of creatures. This defense is based on the idea that creatures are not perfect and that they are therefore capable of making mistakes and causing harm.

The divine hiddenness defense is a response to the problem of evil that suggests that evil is a result of the divine hiddenness of God. This defense is based on the idea that God has chosen to hide himself from humans, and that this hiddenness makes it difficult for humans to understand why evil exists.

The limited power defense is a response to the problem of evil that suggests that evil is a result of the fact that God is not all-powerful. This defense is based on the idea that God is limited in his power and that he is therefore unable to prevent all evil from happening.

The limited goodness defense is a response to the problem of evil that suggests that evil is a result of the fact that God is not all-good. This defense is based on the idea that God is not perfectly good and that he is therefore capable of creating a world that contains evil.