Psalm 71: 3 (king james version) be thou my strong habitation, whereunto i may continually resort: thou hast given commandment to save me; for thou art my rock and my fortress. name and explain the figure of speech verse 3.

The answer is Metaphor.

 The figure of speech used in the verse 3 of the Psalm 71 is Metaphor, which is the comparison of two things that are not related, in an implicit or hidden way. The psalmist is comparing God to  a solid rock, which is not easily moved ("my rock") and is a refuge for him; he also compares God to a well-protected castle ("my strong habitation and my fortress"), he feels secure and protected.

answer: group ii. when the root is a full word except for a final e, the forms usually are spelled with -able.

explanation: the word will be deplorable. -able will be used with the word 'deplore-'. the group ii is when the root is a full word except for a final e, the forms usually are spelled with -able is used for the word deplore- because the word deplore- has 'e' at the end of it.