He said to them: "It is not for you to know the times or dates the Father has set by his own authority."
NIV
He said to them, It is not for you to become acquainted with and know what time brings [the things and events of time and their definite periods] or fixed years and seasons (their critical niche in time), which the Father has appointed (fixed and reserved) by His own choice and authority and personal power.
AMP
And he said unto them, It is not for you to know the times or the seasons, which the Father hath put in his own power.
KJV
And do this, understanding the present time. The hour has already come for you to wake up from your slumber, because our salvation is nearer now than when we first believed.
NIV
Besides this you know what [a critical] hour this is, how it is high time now for you to wake up out of your sleep (rouse to reality). For salvation (final deliverance) is nearer to us now than when we first believed (adhered to, trusted in, and relied on Christ, the Messiah).
AMP
And that, knowing the time, that now it is high time to awake out of sleep: for now is our salvation nearer than when we believed.
KJV
When the Israelites saw that their situation was critical and that their army was hard pressed, they hid in caves and thickets, among the rocks, and in pits and cisterns.
NIV
When the men of Israel saw that they were in a tight situation--for their troops were hard pressed--they hid in caves, holes, rocks, tombs, and pits or cisterns.
AMP
When the men of Israel saw that they were in a strait, (for the people were distressed,) then the people did hide themselves in caves, and in thickets, and in rocks, and in high places, and in pits.
KJV