Exodus 9:2

9:2 For if you refuse to release them ¹  and continue holding them, ² 

Exodus 10:27

10:27 But the Lord hardened Pharaoh’s heart, and he was not willing to release them.

[9:2]  ¹ tn The object “them” is implied in the context.

[9:2]  ² tn עוֹד (’od), an adverb meaning “yet, still,” can be inflected with suffixes and used as a predicator of existence, with the nuance “to still be, yet be” (T. O. Lambdin, Introduction to Biblical Hebrew, 171-72, §137). Then, it is joined here with the Hiphil participle מַחֲזִיק (makhaziq) to form the sentence “you are still holding them.”