In the ancient Middle East, fathering a son was of utmost importance, as from the father's perspective, he was the only opportunity for the continuity of his name, his house, and his inheritance. Lineage was extremely important, which is why last names did not exist at that time; instead, one was called 'son of...'. This was another way in which the bond between father and son was strengthened.

When we put the words av (father) and ben (son) together, something wonderful happens (Hebrew is read from right to left, so I've arranged the Spanish in the same way):

Even=ben+av -אַב+בֵּן=אֶבֶן

The union of father and son equals a stone! The strength and permanence of a stone is comparable to the bond between a father and son.

With this in mind, we can understand Yeshua's passion for calling Yehováh His father, considering the strength of His union with Him as His son, and teaching others to have the same type of bond.
Hebrew word for stone is (אֶבֶן) even.
Hebrew contraction of the word for; father and son. Aleph, Beit = Av אב.
and Beit, Nun = Ben בן.
In unity (yachad יָ֫חַד).