דוד

David is used as the second son in the Second son motif. As you examine that motif in the link, also look at the others in the genealogy that are used in the motif. I don't think I will spend time on them here.

The dalet ד represents a spoken word from God. When there are two things (such as two dalets in the name David) one represents the earthly and one the heavenly aspect of the same thing. The two words of God are his revelation of himself as Love, and Holy. The vav ו distinguished between them and joins them. Jesus was personally Holy, but he did not express that holiness through judgement. He fulfilled it on the cross by satisfying God's holiness through his death. He showed mercy or love. He reconciled love and holiness on the cross.