I Chronicles 25:29 Midrash

לִשְׁנַ֤יִם וְעֶשְׂרִים֙ לְגִדַּ֔לְתִּי בָּנָ֥יו וְאֶחָ֖יו שְׁנֵ֥ים עָשָֽׂר׃

For the two and twentieth to Giddalti, his sons and his brethren, twelve;

Read midrashic interpretation of I Chronicles 25:29: and classical rabbinic exegesis.