1That day Jesus went out of the house and was sitting by the sea. 2And large crowds gathered to Him, so He got into a boat and sat down, and the whole crowd was standing on the beach.
Mat_13:1
NASB
"that day"
NKJV
"on the same day"
NRSV, TEV,
NJB
" that same day"
This is not meant to be a temporal marker in this context, but a transition technique. An example of it as a temporal marker is Mat_22:23; Mar_4:35.
▣ "was sitting by the sea" Sitting was the official teaching position of a rabbi (cf. Mat_13:2; Mat_15:29; Mat_24:3; Mat_26:55; Luk_4:20; Act_13:14). They stood to read the Scripture (cf. Luk_4:16). This position and place suggest a teaching session. The sea acted as a natural amphitheater.
Mat_13:2 "so He got into a boat and sat down" A boat was usually available when Jesus taught because of the press of the crowd (cf. Luk_5:1-3; Mar_3:9).