http://www.holdingfast.net/apps/articles/default.asp?blogid=0&view=post&articleid=Ch24a--What-is-a-True-Apostle&link=1&fldKeywords=&fldAuthor=&fldTopic=0
Sorry, there aren't any Apostles today; at least, not those the Bible describes as being legit.
http://www.holdingfast.net/apps/articles/default.asp?blogid=0&view=post&articleid=Ch23b---Attributes-and-Marks-of-the-Church&link=1&fldKeywords=&fldAuthor=&fldTopic=0
This is a great study if you're looking for a church!
http://www.holdingfast.net/apps/articles/default.asp?blogid=0&view=post&articleid=Ch23a--What-is-The-Church&link=1&fldKeywords=&fldAuthor=&fldTopic=0
Biblical terms for the church, from both Old and New Testaments.
http://www.holdingfast.net/apps/articles/default.asp?blogid=0&view=post&articleid=Ch22c--Gods-Perseverance-in-His-Saints&link=1&fldKeywords=&fldAuthor=&fldTopic=0
Man's assurance lies in the fact that God the Holy Spirit perseveres in His people.
http://www.holdingfast.net/apps/articles/default.asp?blogid=0&view=post&articleid=Ch22b---Imperfect-Sanctification&link=1&fldKeywords=&fldAuthor=&fldTopic=0
A believer's spiritual development remains imperfect in this life.
http://www.holdingfast.net/apps/articles/default.asp?blogid=0&view=post&articleid=Ch22a--Just-What-Is-Sanctification&link=1&fldKeywords=&fldAuthor=&fldTopic=0
The gracious, ongoing operation of the Holy Spirit where He purifies the sinner.
http://www.holdingfast.net/apps/articles/default.asp?blogid=0&view=post&articleid=Ch21b---Erroneous-Views-of-Justification&link=1&fldKeywords=&fldAuthor=&fldTopic=0
This study addresses two common yet damnable heresies on justification.
http://www.holdingfast.net/apps/articles/default.asp?blogid=0&view=post&articleid=Ch21a---Two-Elements-of-Justification&link=1&fldKeywords=&fldAuthor=&fldTopic=0
There is both a negative and positive element to justification.
http://www.holdingfast.net/apps/articles/default.asp?blogid=0&view=post&articleid=Ch20d---Assurance-of-Faith&link=1&fldKeywords=&fldAuthor=&fldTopic=0
When do I get assurance? How do I know I'm saved?
http://www.holdingfast.net/apps/articles/default.asp?blogid=0&view=post&articleid=Ch20c--Three-Parts-to-Christian-Faith&link=1&fldKeywords=&fldAuthor=&fldTopic=0
Faith involves the heart, the soul, and the mind.