Bible Dictionary
Air
Air refers to the atmosphere or space between the earth and the heavens. In Scripture, “speaking into the air” means speaking without effect, while “beating the air” describes labor that misses its aim.
Biblical Usage
“Speaking into the air” means speaking in vain, while “beating the air” means striking without reaching the mark or laboring without effect. The phrase “birds of the air” reflects the biblical expression for the space above the earth.
Scripture References