הוֹשִׁיעֵ֥נִי אֱלֹהִ֑ים כִּ֤י בָ֖אוּ מַ֣יִם עַד־נָֽפֶשׁ׃
Спаси меня, Боже; Ибо воды приходят даже в душу.
Radak
To the neck/soul Until the soul departs, that is to say close to death. And it compares the troubles of exile to water when a person is in it up to her neck, that she is close to death.