fam42 The Foolish Child explains what the Bible teaches on fools and foolishness, and also a parent's solution to a foolish child.
Excerpts: Ecclesiastes 4:13 Better is a poor and a wise child than an old and foolish king, who will no more be admonished. A fool is a person who rejects advice.
We can define the concept of foolishness as the lack of values and vision toward eternity, toward spiritual things. In other words, this person lives focusing on things that the person wants, and he does not pay attention to what God says as being important, or how God says we should live.
Proverbs 18:2 A fool hath no delight in understanding, but that his heart may discover itself.
The basis of being wise is that you do not limit yourself, to just what you think you know. A wise person opens his thinking to the wisdom and advice of others, and weighs others’ opinions to see if they are right or not. The foolish only considers what he himself thinks, or what other fools like him think.
View tract: fam42 The Foolish Child

Strong Systematic Theology is a detailed and extensive Systematic Theology. It might be too complicated for the average Christian. Has a lot of reference notes to other works on various points of Bible doctrine.
This work is only in theWord format at the moment.
Download: Strong Systematic Theology (for theWord).

Dagg Manual of Theology (and links to this work in various other formats).
Dagg Manual of Theology (MySword for Android)
Dagg Manual of Theology (theWord Bible Format)
Dagg Manual of Theology (esword format)
Dagg Manual of Theology (PDF Format)

Compare TheWord vs E-Sword (Updated 4/23/2021) In Compare TheWord vs E-Sword (Updated 4/23/2021) I compare the two Bible programs, theWord against e-Sword.
Read the Comparison: Compare TheWord vs E-Sword 4/23/21.

Torrey How to Bring Men to Christ is a manual for witnessing to the unsaved to lead them to Christ. It has hints, tips, and suggestions. 13 Chapters.
Downloads:
PDF: Torrey How to bring men to Christ
theWord: Torrey How to bring men to Christ
MySword: Torrey How to bring men to Christ
eSword: Torrey How to bring men to Christ

Divine use of Sickness

Job 13:15 Though he slay me, yet will I trust in him: but I will maintain mine own ways before him.

There is an attitude within much of Christianity that sickness in any form is bad, and God does not have anything to do with it. For these Christians, they ask God to take the sickness away, and sometimes (as though it was their right to be health) that they demand God to remove their sickness. The reality of life is that they continue ill, and many have a crisis of faith over this. For them, God is impotent, or God does not love them. In other words, their confidence, faith, and love of God depends on God always sending them good things. But this is not how the Bible indicates life is. God uses calamity and sickness for His own purposes, and we have to understand this (and accept it).