כִּֽי־אַתָּה֮ תְּבָרֵ֪ךְ צַ֫דִּ֥יק יְהוָ֑ה כַּ֝צִּנָּ֗ה רָצ֥וֹן תַּעְטְרֶֽנּוּ׃
Bo błogosławisz sprawiedliwemu o Boże, gdyby tarczą, łaską go wieńczysz.
Rashi
A michtam of David Our Sages said (Sotah 10b, Mid. Ps. 16:1): Of David, who was poor (מך) and perfect (ותם), whose wound (מכתו) was perfect (תמה), for he was born circumcised. However, the sequence of the verse here does not lend itself to be interpreted according to the Midrash. There are psalms prefaced by the title לדוד מכתם, which may be interpreted: This song is David’s, who was poor and perfect, but here, where it is stated מכתם לדוד, it cannot be interpreted in this manner. I therefore say that it is one of the names of the various types of melodies and the variations in the music. Another explanation: מכתם is an expression of a crown, like כתם, meaning that David was accustomed to say, “O God, guard me for I have taken refuge in You.” And this was to him as a crown, as it is stated (5:13): “You shall crown him with will.”
Rashi
And thorns. This is an expression of camps. Similarly: “And they will come upon you with camps,”2Yechezkeil 23:24. like a shield (צִנָה) that surrounds a person on three sides, as it is said, “As a shield, you encompass him with favor,”3Tehillim 5:13. תַּעְטְרֶנוּ meaning תְּסוֹבְבֶנוּ, surrounding, similar to “And Shaul and his men surrounded David and his men.”4I Shmuel 23:26. עוֹטְרִים meaning סוֹבְבִים, surrounding.
Rashi
two hundred shields צִנָּה which encompasses the person from his three sides, as is written (Ps. 5: 13): “As a shield You encompass him with favor” (כַּצִּנָּה).
Rashi
Full shields. [A body shield that] encircles the person on three sides. This is the meaning of the verse in the Book of Tehillim, “as a body shield, with good, will You shall surround him.”7Tehillim 5:13.