Mark 8:11

New English Translation

¹¹Then the Pharisees^[a] came and began to argue with Jesus, asking for^[b] a sign from heaven^[c] to test him.

Mark 8:11 sn See the note on Pharisees in 2:16.
Mark 8:11 tn Grk “seeking from him.” The participle ζητοῦντες (zētountes) shows the means by which the Pharisees argued with Jesus.
Mark 8:11 sn What exactly this sign would have been, given what Jesus was already doing, is not clear. But here is where the fence-sitters reside, refusing to commit to him.

New English Translation (NET)