And the thing was very grievous in Abraham's sight on account of his son.
And the thing was very grievous in Abraham's sight because of his son.
And the thing was very grievous (serious, evil) in Abraham's sight on account of his son [Ishmael].
And the thing was very grievous in Abraham’s sight on account of his son.
This upset Abraham terribly because the boy was his son.
Abraham took this grievously, for the sake of his son.
Abraham took this grievously for his son.