beside Him! Contrive, then, [anything that you may wish] against me, all of you, and give me no respite!

"Other gods as partners! so scheme (your worst) against me, all of you, and give me no respite.

Beside Him. So (try to) circumvent me, all of you, give me no respite.

Besides Him. So scheme against me all together, then give me no respite.

Other than Him. So plot against me all together; then do not give me respite.