1Ch 17:11 - And it shall come to pass, when thy days be expired that thou must go
to be with thy fathers, that I
will raise up thy seed after thee,
which shall be of thy sons; and I will establish his kingdom.
1Ch 17:12 - He shall build me an house, and I will stablish his throne for ever.
1Ch 17:13 - I will be his father, and he shall be my son: and I will not take my mercy away from him, as I took
it from
him that was before thee:
1Ch 17:14 - But I will settle him in mine house and in my kingdom for ever: and his throne shall be established for evermore.
1Ch 17:15 - According to all these words, and according to all this vision, so did Nathan speak unto David.
Jesus is a literal son of David according to the flesh. This by his mother Mary.