The section of the epistle to the Ephesians on the armour to be worn by every Christian is a profound passage of Scripture. It provides a warning and a promise to every believer. The promise is that if we wear all the armour then we win battles, not just war. The warning is if we don't wear all the armour we will be defeated.
"We urgently need in the pulpits of the world a new generation of Simeons who like him, will expound Scripture with faithfulness, passion and relevance." - John Stott (1921-2011), Rector Emeritus, All Souls Church, Langham Place, London