Komentaryong Sumisipi para sa Mga Awit 67:7

ואלה בני צבעון ואיה וענה, the letter ו in the word ואיה, is not part of the name of the person described. It is the kind of ו used in Scripture sometimes to introduce a new sequence, such as in 22,4 ויהי ביום השלישי וישא אברהם את עיניו, “on the third day Avraham raised his eyes.” For the previous 2 days he had been proceeding in the direction of the land of Moriah; now, on the third day, he thought it was time to look for a definitive place in that region. A similar use of the letter ו occurs in Psalms 67,7 נרדם ורכב וסוס, where the letter ו at the beginning of ורכב, introduces a new subject (of sorts). Other examples of a similar nature are Samuel II 13,20, etc. My grandfather of blessed memory wrote that none of these letters ו are additional, i.e. meant for considerations involving syntax, but they are an alert to the reader that a word prior to the word starting with the letter ו is missing in the sentence and has to be found in the text preceding it. Accordingly, the meaning of the words ואיה וענה is that Tzivon had other sons beside those listed here, senior to the ones listed here, but that the Torah had not considered it necessary to mention their names. Perhaps the reason is that those sons had not produced progeny. The ענה mentioned here is not the same as has been mentioned in verse 20. The one mentioned in verse 20 was a descendent of the בני שעיר and was not a son of Tzivon who was a brother of Tzivon. Our sages in Pessachim 54 believe that the two men called ענה are one and the same. To the possible question whether we are dealing with two men of the same name, the Torah answers: “this is the Anah who was well known previously for having located the Yeymim, etc.” Our sages concluded further that Tzivon had slept with his mother having begotten Anah from that intercourse. Not only had Anah himself been a bastard, but he had produced more bastards himself. According to the plain meaning of the text, the words הוא ענה, simply mean: “he is the well known Anah.”