'Means' in the Bible

David had said, "On that day {when we attack the Jebusites}, one must attack the lame and the blind, [those] who hate the soul of David, by [means of] the water supply." For thus the blind and the lame would say, "He cannot come into the house."

Look, there with them [are] their two sons, Ahimaaz of Zadok and Jonathan of Abiathar. You shall send to me {by means of them} all the words that you hear."

So then, send quickly and tell David, 'Don't spend the night at the fords of the wilderness! Moreover, by all means cross over lest the king and all the people who [are] with him be swallowed up.'"

Then all the men of Judah answered the men of Israel, "Because the king [is] my close relative! Why [are] you this angry over this matter? {Have we by any means eaten [anything] from the king? Did we take by any means anything that was not ours}?"

Then she said, "In former times, {they would always say}, 'By all means, let them inquire in Abel,' and so they settled things.