'Acknowledge' in the Bible

Rather, he must acknowledge the son of the less loved wife as firstborn and give him the double portion of all he has, for that son is the beginning of his father's procreative power -- to him should go the right of the firstborn.

For I will proclaim the name of the Lord; you must acknowledge the greatness of our God.

He said to his father and mother, "I have not seen him," and he did not acknowledge his own brothers or know his own children, for they kept your word, and guarded your covenant.