'Certain' in the Bible

Now there was a certain man among the Pharisees named Nicodemus, a ruler (member of the Sanhedrin) among the Jews,

who came to Jesus at night and said to Him, “Rabbi (Teacher), we know [without any doubt] that You have come from God as a teacher; for no one can do these signs [these wonders, these attesting miracles] that You do unless God is with him.”

So Jesus came again to Cana of Galilee, where He had turned the water into wine. And there was a certain royal official whose son was sick in Capernaum.

There was a certain man there who had been ill for thirty-eight years.

There is another [My Father] who testifies about Me, and I know [without any doubt] that His testimony on My behalf is true and valid.

We know [for certain] that God has spoken to Moses, but as for this Man, we do not know where He is from.”

Now a certain man named Lazarus was sick. He was from Bethany, the village where Mary and her sister Martha lived.

I have told you these things, so that in Me you may have [perfect] peace. In the world you have tribulation and distress and suffering, but be courageous [be confident, be undaunted, be filled with joy]; I have overcome the world.” [My conquest is accomplished, My victory abiding.]