Kehillah in Corinth I 8:2

2 If anyone presumes he has da’as of anything, he does not yet have da’as of the necessary da’as.

Kehillah in Corinth I 8:2 Meaning and Commentary

1 Corinthians 8:2

And if any man think that he knows anything
Whoever has an opinion of himself, or is conceited with his own knowledge, and fancies that he knows more than he does; which is always the case of those that are elated with their knowledge, and treat others with contempt, and have no regard to their peace and edification:

he knoweth nothing yet as he ought to know;
if he did, he would know this, that he ought to consult the peace, comfort, and edification of his brother; and therefore whatever knowledge he may fancy he has attained to, or whatever he may be capable of, and hereafter obtain, for the present he must be put down for a man that knows nothing as he should do; for he knows neither his duty to God nor man; if he knew the former, he would know the latter.

Kehillah in Corinth I 8:2 In-Context

1 Now concerning the sacrifice to an elil (idol in avodah zarah, idol worship), we know that "we all possess da’as (knowledge)." But da’as puffs up (with ga’avah), but ahavah (agape 14:1) builds up.

2 If anyone presumes he has da’as of anything, he does not yet have da’as of the necessary da’as.

3 But if a person has Ahavas Hashem, Hashem has da’as of that person. [YIRMEYAH 1:5]

4 Now concerning the eating of the okhel (food) at the mizbe’ach of avodah zarah which is sacrificed to an elil (idol), we have da’as that an elil is nothing in the world, and that there is no G-d but ECHAD (DEVARIM 4:35, 39; 6:4).

5 For even if there are [in popular tradition] so-called "g-ds," whether in Shomayim or on ha’aretz, even as there are so-called "g-ds" many and "l-rds" many,