▼tn The form לִהְיוֹת (liheyot, “to be”) is the infinitive construct indicating the purpose (or result) of the teaching (cf. NASB, NIV, NRSV).

▼tn The verb הוֹדַעְתִּי (hodaʿti; from יָדַע, yadaʿ) is a Hiphil perfect form. The Hiphil is factitive “to make know,” i.e., “to inform.” The Hebrew perfect should be understood either as perfective “I have informed you” or performative “I hereby inform you.” Either is appropriate for “today” since the thirty sayings it refers to have been written down (v. 20), but it appears to be part of introducing the sayings rather than a recap. However if the “thirty [sayings]” mentioned in v. 20 should be understood as the word “day before yesterday” then the perfective translation should be preferred.