וְאַתָּ֣ה שְׁלֹמֹֽה־בְנִ֡י דַּע֩ אֶת־אֱלֹהֵ֨י אָבִ֜יךָ וְעָבְדֵ֗הוּ בְּלֵ֤ב שָׁלֵם֙ וּבְנֶ֣פֶשׁ חֲפֵצָ֔ה כִּ֤י כָל־לְבָבוֹת֙ דּוֹרֵ֣שׁ יְהוָ֔ה וְכָל־יֵ֥צֶר מַחֲשָׁב֖וֹת מֵבִ֑ין אִֽם־תִּדְרְשֶׁ֙נּוּ֙ יִמָּ֣צֵא לָ֔ךְ וְאִם־תַּֽעַזְבֶ֖נּוּ יַזְנִיחֲךָ֥ לָעַֽד׃
Dan engkau, Salomo, anakku, kenallah Allah ayahmu dan beribadahlah kepada-Nya dengan sepenuh hati dan dengan jiwa yang rela, sebab Yang Mahakekal menyelidiki segala hati dan memahami setiap gerak pikiran. Jika engkau mencari Dia, Ia akan ditemukan olehmu, tetapi jika engkau meninggalkan Dia, Ia akan membuang engkau untuk selama-lamanya.
Orchot Tzadikim
But the highest form of the virtue of shame is that he should be ashamed before the Holy One, Blessed is He, as it is said: "O my God, I am ashamed and blush to lift up my face to Thee" (Ezra 9:6). And if you should think, "How can I be ashamed before Him whom I cannot see with my eyes?" you should truly know that even though the Holy One, Blessed is He, is hidden from the eyes of all the living, He is found in our hearts and is revealed in our thoughts. Man can attain a higher degree in his sense of shame if he meditates in solitude on the greatness of God, Blessed is He, and if he remembers constantly the Holy One, Blessed is He, who sees his deeds and searches the reins and sees his thoughts. As an example, one of our Sages said, "If you have guarded yourself all your days not to sin, do not take credit for yourself because the beginning of turning away from sin lies in your being ashamed of what people will think of you." Therefore, a person should be very careful to guard against this motive and to keep in his heart when he avoids sin that he does not refrain from sin because of shame from his fellows, for the evil desire prompts him to concern himself with the opinion of his fellows, saying, "If you do this people will hold you in contempt." Therefore, a man should place as first above all — that he must know his Creator, recognize His power, and decide in his heart whom he wishes to serve and whom he fears, whose command he wishes to obey and who has warned him. As David said to Solomon, his son: "Know thou the God of thy father and serve Him with a whole heart and with a willing mind" (I Chron. 28:9). In this way he will attain to the degree where he is ashamed only before God.
Letter from Ramban to his Son
And this is the letter which the above-mentioned Rabbi sent from the Holy Land to Castile, when his son was staying before the king (in his service):- May God bless you, and preserve you from sin and punishment. Behold, our master, King David, bore a son, wise and of understanding, like unto whom there was never one before or after. Nevertheless he said to him (1 Kings ii. 2): 'And keep the charge of the Lord thy God,' etc. He also said to him: 'And thou, my son, know the God of thy father' (1 Chron. xxviii. 9). Now, my son, if thou wilt measure thyself with Solomon, thou wilt find thyself a worm, - not a man, merely an insect, nevertheless, if thou wilt seek God, he will make thee great; and if thou wilt forsake him, thou wilt be turned out and forsaken. My son, be careful that thou readest the Shema morning and evening, as well as that thou sayest the daily prayers. Have always with thee a Pentateuch written correctly, and read therein the Lesson for each Sabbath...
Sefer HaYashar
If the wise one should search out all the good things of this world, he will discern that every favor which has been apportioned to him will not accompany him at his death. Neither will his glory follow him. But he will leave everything and go barren and empty, except for one good thing which has been apportioned to him, and that is the service of God— this alone will go before him, as it is said (Isaiah 58:8), “And thy righteousness shall go before thee.” Therefore, King David, of blessed memory, said (1 Chronicles 28:9), “If thou seek Him, He will be found of thee.” And as it is said (Hosea 10:12), “For it is time to seek the Lord.” As the prophet, of blessed memory, said (Isaiah 55:6), “Seek ye the Lord58See Pesikta de Rav Kahana edited by B. Mandelbaum (New York: Jewish Theological Seminary, 1962) Vol. 2, p. 471. while He may be found, call ye upon Him while He is near.”