Probably Nicodemus made his visit by night because he did not wish to precipitate matters by calling undue attention to the position and intentions of Jesus.
"The Expositor's Bible: The Gospel of St. John, Vol. I"
Marcus Dods
So entirely is this the case that it is common to hear any proposal which is thought to involve an undue extension of the power of the State branded as socialistic, whatever be the object it may seek to accomplish.
"Contemporary Socialism"
John Rae
"I hope I do not take undue credit to myself," he replied, "when I say that I have known this ever since our acquaintance began, and I only asked you to remain silent because I could not have controlled myself with declarations of love from your lips ringing in my ears.
"The Mystery of the Locks"
Edgar Watson Howe