וַיֵּ֤רֶד יְהוָה֙ בֶּֽעָנָ֔ן וַיִּתְיַצֵּ֥ב עִמּ֖וֹ שָׁ֑ם וַיִּקְרָ֥א בְשֵׁ֖ם יְהוָֽה׃
И сошел Господь в облаке, и стал с ним там, и провозгласил имя Господа.
Rashi
ויקרא בשם ה׳ AND HE CALLED BY NAME, O LORD — We render this in the Targum by, 'ויקרא בשמא דה and he (Moses) called on the name of the Lord.
Chizkuni
ויקרא בשם ה, “He called to him, using His name the tetragram.” G-d informed Moses regarding which of His attributes would accompany him. A different interpretation: G-d called to him what is written subsequently, i.e. the list of 13 of His attributes relevant to prayers that were primarily appeals for forgiveness. Our author likes this explanation, citing the fact that the words 'ה and על פניו, have been separated by a p’sik, vertical line.
Da'at Zekenim
'ויקרא בשם ה, ”He proclaimed the name of the Lord;” G–d announced that he would walk with the Israelites.