Hijo, ven a casa. --- is a literal translation that is correct. However, if the English statement is a plea or a lament, then this translation loses that intent.
Regresa a tu casa mi hijo -- (return to your home/house my son) is more of a plea for a son to return home.
son casa
We can say that by "FATHER IS HOME". It signifies that your father has come home from a son's perspective.
"son"
The Spanish translation of "my son" is "mi hijo."
In spanish son is: hijo
Hoy mi hijo nececita ir al casa
In Spanish, you say mother as "madre" and son as "hijo."
You say, "Soy tu hijo."
You can say "ellos son guapos".
son feos or ellos son feos
Son mis hermanasMis hermanas son
Grey son = hijo gris