29 Heb “work.”
30 Heb “it will not again (תֹסֵף, tosef) give (תֵּת, tet),” meaning the ground will no longer yield. In translation the infinitive becomes the main verb, and the imperfect verb form becomes adverbial.
31 Heb “its strength.”
32 Two similar sounding synonyms are used here: נָע וָנָד (na’ vanad, “a wanderer and a fugitive”). This juxtaposition of synonyms emphasizes the single idea. In translation one can serve as the main description, the other as a modifier. Other translation options include “a wandering fugitive” and a “ceaseless wanderer” (cf. ).

In other versions

When you work the ground, it shall no longer yield to you its strength. You shall be a fugitive and a wanderer on the earth.”

When you work the ground, it will no longer yield its crops for you. You will be a restless wanderer on the earth.”

If you work the ground, it will never again give you its yield. You will be a restless wanderer on the earth.”

No longer will the ground yield good crops for you, no matter how hard you work! From now on you will be a homeless wanderer on the earth.”

When you till the ground it shall no longer yield its strength to you. You shall be a wanderer and a fugitive on the earth.”

When thou tillest the ground, it shall not henceforth yield unto thee her strength; a fugitive and a vagabond shalt thou be in the earth.

Public Domain