Psalms 119:46

I will speak of thy testimonies also before kings
As very likely he did before Saul and his courtiers, before the king of Achish and the princes of the Philistines, when as yet he was not a king himself; and when he was come to the throne, such kings as came to visit him, instead of talking with them about affairs of state, he spoke of the Scriptures, and of the excellent things they bear witness of; and such a practice he determined to pursue and continue in;

and will not be ashamed;
of the testimonies of God, and of the truths contained in them; and of speaking of them and for them; or of being reproached and vilified on that account. So the Apostle Paul was a chosen vessel to bear the name of Christ before kings; nor was he ashamed to speak of him and of his Gospel before Nero the Roman emperor, Agrippa king of the Jews, and before Felix and Festus, Roman governors; nor ashamed of the reproaches and afflictions he endured on that account.