The conclusion to the first half of Ephesians is a prayer for believers to have strength to know Christ’s love.
God has always been with his people, in various ways and temporarily in Old Testament times and later and permanently in human flesh.
The Jerusalem Council kept the door of salvation open to all Jews and non-Jews who repent and believe in Jesus Christ.
While David used desperate and even deceptive means of escape, God provided for him because of his grace and faithfulness.