2 Corinthians 3:12 (KJV) Seeing then that we have such hope, we use great plainness of speech:

The hope GOD has given us is through the good news (gospel) of Jesus Christ, His work on the cross, salvation, forgiveness of sin and eternal life to all who believe.

Because of this we can use great plainness of speech.
Plainness of speech in the Greek means according to Thayer Definition:
1) freedom in speaking, unreservedness in speech
1a) openly, frankly, i.e without concealment
1b) without ambiguity or circumlocution
1c) without the use of figures and comparisons
2) free and fearless confidence, cheerful courage, boldness, assurance
3) the deportment by which one becomes conspicuous or secures publicity

Therefore let us be encourage not to conceal the good news but to presenting it boldly to those the LORD is leading us to share it with.

Let us pray. Father we thank you for the hope you have given us and help us to express it in our daily life and in boldness of speech. In the name of Jesus Christ. Amen.