2 Timothy 2:14-15

Keep reminding God's people of these things. Warn them before God against quarreling about words; it is of no value, and only ruins those who listen. Do your best to present yourself to God as one approved, a worker who does not need to be ashamed and who correctly handles the word of truth. 

Warn them before God against quarreling about words 
2 Timothy 2:23  Don't have anything to do with foolish and stupid arguments, because you know they produce quarrels.
1 Timothy 1:3-4  As I urged you when I went into Macedonia, stay there in Ephesus so that you may command certain people not to teach false doctrines any longer or to devote themselves to myths and endless genealogies. Such things promote controversial speculations rather than advancing God's work--which is by faith.
1 Timothy 6:3-5  If anyone teaches otherwise and does not agree to the sound instruction of our Lord Jesus Christ and to godly teaching, they are conceited and understand nothing. They have an unhealthy interest in controversies and quarrels about words that result in envy, strife, malicious talk, evil suspicions and constant friction between people of corrupt mind, who have been robbed of the truth and who think that godliness is a means to financial gain.
Titus 3:9  But avoid foolish controversies and genealogies and arguments and quarrels about the law, because these are unprofitable and useless.

a worker who does not need to be ashamed and who correctly handles the word of truth 
Ephesians 1:13-14  And you also were included in Christ when you heard the message of truth, the gospel of your salvation. When you believed, you were marked in him with a seal, the promised Holy Spirit, who is a deposit guaranteeing our inheritance until the redemption of those who are God's possession--to the praise of his glory.
Colossians 1:5-6a  ... the faith and love that spring from the hope stored up for you in heaven and about which you have already heard in the true message of the gospel that has come to you.
James 1:18  He chose to give us birth through the word of truth, that we might be a kind of firstfruits of all he created.

Scriptures taken from the Holy Bible, New International Version® NIV®, 
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