2 Timothy 2:15 says, Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth. Paul said Timothy was to study to show himself approved. I believe he meant to study God’s word as the most important thing that he could study. We today need to study God’s word as well, but that doesn’t mean that is the only thing we should study. Paul said Timothy was to do this so that he might not be ashamed of his lack of knowing God’s word I believe. As followers of Christ, we need to know God’s word so that we will not be ashamed by our lack of understanding it. Paul also said that Timothy would know how to rightly divide the word of truth if he studied God’s word. This would apply to being able to know what other things Timothy might study that he would know how God’s truth applied to it I believe. Everything we may study today should be consistent with God’s word.
Verse sixteen adds, But shun profane and vain babblings: for they will increase unto more ungodliness. Paul said that Timothy was to avoid profane and vain babblings since they could only cause more ungodliness. I believe this refers to things that are added to God’s word in relationship to salvation and what it means to be a Christian. I don’t believe that it means that we shouldn’t talk about other things in the world, but if they are profane and foolish then we should avoid them.
Verse seventeen continues, And their word will eat as doth a canker: of whom is Hymenaeus and Philetus; Paul said these profane and vain babblings were like a canker sore and would eat away at a person's faith. He then gave the names of two people that proclaimed such things. If we begin to hear someone who professes to be a Christian proclaim something about God that is not the truth according to His word, we need to avoid them.
Verse eighteen states, Who concerning the truth have erred, saying that the resurrection is past already; and overthrow the faith of some. These two men were saying that the resurrection of believers had already happened, and this caused some people to renounce their faith. I believe this means they were not truly saved, because if they were they wouldn’t believe this. Still, some followers of Christ today will believe things that are not consistent with God’s word, but this doesn’t mean they aren’t saved. They just become ineffective witnesses and lose their spiritual power that the Holy Spirit provides.
Verse nineteen adds, Nevertheless the foundation of God standeth sure, having this seal, The Lord knoweth them that are his. And, let every one that nameth the name of Christ depart from iniquity. Paul said that the foundation of God stood, and that was forgiveness through faith in Jesus Christ alone and those who put their faith in Him were sealed by God as His. He then added that those who had put their faith in Jesus Christ were to depart from iniquity. If we have accepted Jesus Christ as our Savior and Lord, we are forever sealed by God as a part of His kingdom. When do accept Him, we are to depart from iniquity. We will not always be successful in this, but this should be our goal.