Mark 16:20

16:20 They went out and proclaimed everywhere, while the Lord worked with them and confirmed the word through the accompanying signs.]]

John 4:48

4:48 So Jesus said to him, “Unless you people ¹  see signs and wonders you will never believe!” ² 

¹ tn The word “people” is not in the Greek text, but is supplied to indicate that the verb is second person plural (referring to more than the royal official alone).

² tn Or “you never believe.” The verb πιστεύσητε (pisteushte) is aorist subjunctive and may have either nuance.