NT-EPISTLES.filter - nasb certainly:

nasb@Romans:6:5 @For if we have become united with Him in the likeness of His death, certainly we shall also be in the likeness of His resurrection,

nasb@1Corinthians:14:25 @the secrets of his heart are disclosed; and so he will fall on his face and worship God, declaring that God is certainly among you.

nasb@2Corinthians:12:17 @Certainly I have not taken advantage of you through any of those whom I have sent to you, have I?