77 Grk “he”; the referent (Jesus) has been specified in the translation for clarity.
78 Grk “crowds, behold, his mother.” The Greek word ἰδού (idou) has not been translated because it has no exact English equivalent here, but adds interest and emphasis ( 1).
79 The issue of whether Jesus had brothers (siblings) has had a long history in the church. Epiphanius, in the 4th century, argued that Mary was a perpetual virgin and had no offspring other than Jesus. Others argued that these brothers were really cousins. Nothing in the text suggests any of this. See also John 7:3.
80 “His mother and brothers came and” is a translation of “behold, his mother and brothers came.”
81 Grk “seeking.”

In other versions

While he was still speaking to the people, behold, his mother and his brothers stood outside, asking to speak to him.

While Jesus was still talking to the crowd, his mother and brothers stood outside, wanting to speak to him.

While he was still speaking with the crowds, his mother and brothers were standing outside wanting to speak to him.

As Jesus was speaking to the crowd, his mother and brothers stood outside, asking to speak to him.

And while he was still speaking to the crowds, behold, his mother and brothers were standing there outside, desiring to speak to him.

While he yet talked to the people, behold, his mother and his brethren stood without, desiring to speak with him.

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