Mark 1:36

“And Simon, and they that were with him, etc..] Peter, and his brother Andrew, together with James and John, followed after him; some time after he was gone; for he privately withdrew from them, so that they might not be aware when he went, nor apprized of his departure, for some considerable time; which when they were, they set out, in diligent search, and eager pursuit after him, until they found him.”

“And Simon and they that were with him followed after him--rather, "pressed after Him." Luke (Luk 4:42) says, "The multitudes sought after Him"; but this would be a party from the town. Mark, having his information from Peter himself, speaks only of what related directly to him. "They that were with him" would probably be Andrew his brother, James and John, with a few other choice brethren.”

“And in the morning, rising up a great while before day - Luke says Luke 4:42, “when it was day.” The passage in Mark means, in the original, not literally “a great while before day,” but very early, or while there was yet “much appearance of night.” The place in Luke means “at daybreak,” at the beginning of day. Then, also, there is much appearance of night; and Luke and Mark therefore refer to the same time before it was fully light, or just at daybreak. And departed into a solitary place, and there prayed - Observe here: 1.That the Saviour, though perfectly holy, regarded the duty of secret prayer as of great importance. 2.That he, sought a solitary place for it - far away from the world…”