Immediately He boarded a boat with His disciples and crossed [to the west side of the lake], to the region of Dalmanutha. [Note: Matt. 15:39 says "Magadan," which was probably in the same vicinity as Dalmanutha]. Verse ConceptsCrowds AvoidedBoatsDisciples' Movements

The Pharisees and Sadducees came [and attempted] to test Jesus [by] asking Him to perform a [supernatural] sign from heaven. But He answered them, {[{[These words are omitted in most ancient manuscripts: "When the sky is reddish in the evening, you predict fair weather [for the next day]. And when the sky is reddish and overcast in the morning, you predict [that it will be] bad weather that day. You know how to interpret [weather] conditions from the sky, but you cannot interpret the signs of the times [i.e., what will happen in the spiritual realm]"]}]}. read more.
"It is an evil and spiritually unfaithful generation of people [that keeps on] looking for a [supernatural] sign; but there will be no [such] sign given to it except the sign of Jonah [i.e., being in the huge fish for three days]." Then He left them and went away.

Immediately He boarded a boat with His disciples and crossed [to the west side of the lake], to the region of Dalmanutha. [Note: Matt. 15:39 says "Magadan," which was probably in the same vicinity as Dalmanutha]. The Pharisees and Sadducees [i.e., these were strict sects of the Jewish religion], came out and began disputing with Jesus, asking for a [supernatural] sign from Him, [in an attempt] to test Him. Then He sighed deeply in His spirit and said, "Why does this generation of people look for a [supernatural] sign? Truly I tell you, there will not be any [supernatural] sign given to this generation."