'Engage' in the Bible

He who is not with Me [believing in Me as Lord and Savior] is against Me [there is no impartial position]; and he who does not gather with Me [assisting in My ministry], scatters.

Or what king, when he sets out to meet another king in battle, will not first sit down and consider whether he is strong enough with ten thousand men to encounter the one who is coming against him with twenty thousand?

And some of the Epicurean and Stoic philosophers began to engage in conversation with him. And some said, “What could this idle babbler [with his eclectic, scrap-heap learning] have in mind to say?” Others said, “He seems to be a proclaimer of strange deities”—because he was preaching the good news about Jesus and the resurrection.

Therefore, since we have this ministry, just as we received mercy [from God, granting us salvation, opportunities, and blessings], we do not get discouraged nor lose our motivation.