Romans 11:7 explains Romans 11:25 by showing that the partial hardening that has come upon Israel (v 25) means that elect within Israel obtained salvation but the rest were hardened (v 7). When the evangelization of the Gentiles has been completed (v 25), then all Israel will be saved at the second coming of Christ. “He will banish ungodliness from Jacob” (vs 26) and renew the new covenant with them when he takes away their sins (v 27).