Yosef Karo

“ All the more so when one takes to heart that the Great King, the Holy One, Blessed Is He, Whose glory fills the earth, is standing over him and watching his actions, as it is stated: "'Will a man hide in concealment and I will not see him?' - the word of God" (Jeremiah 23:24) , he immediately acquires fear and submission in dread of God, May He Be Blessed, and is ashamed of Him constantly (Guide for the Perplexed III 52) . ”

“ Paragraph 1 — One should strengthen himself like a lion to get up in the morning to serve his Creator, so that it is he who awakens the dawn. Gloss: At least, one should not delay beyond the time when the congregation prays (Tur) .
Gloss: "I have set the Lord before me constantly" (Psalms 16:8) ; this is a major principle in the Torah and amongst the virtues of the righteous who walk before God. For a person's way of sitting, his movements and his dealings while he is alone in his house are not like his way of sitting, his movements and his dealings when he is before a great king ”

“ And one should not be ashamed because of people who mock him in his service of God, and should also go modestly. And when he lies on his bed he should know before Whom he lies, and as soon as he wakes up from sleep he should rise eagerly to the service of his Creator, May He Be Blessed and Exalted (Tur) . ”