1 Thessalonians 2:3-4
For our exhortation was not of deceit, nor of uncleanness, nor in guile; But as we were allowed of God to be put in trust with the gospel, even so we speak; not as pleasing men, but God, which trieth our hearts.
The apostle Paul is speaking to the Christians as Thessalonica encouraging them to speak the truth which pleases God. Paul used himself as an example of how he spoke when he preached the gospel. Paul realized that God has entrusted him with the gospel and it was his duty to speak the truth. Speaking the truth was to please God and not men.
It is noteworthy to say that when proclaiming the gospel, God knows the heart whereas man sees the outward and hears what is spoken. It behooves the hearer to know the truth of God's Word. This is accomplished by studying God's Word for oneself.
Speaking the truth gives rises to the speaker's trustworthiness and the person gains a reputation of being truthful. Being truthful and trust worthy emulates God as He is truth and love. Whatever God says or promises can be trusted.
These questions come to mind, when speaking who are you seeking to please, man or God? Pleasing man is short lived while pleasing God is everlasting. Speaking to please man oftentimes man will want to truth circumvented, what must the speaker do?
Speak the truth which pleases God.