Neither one of those versions are as good as this; even though Kurt Weill wrote it, he should never try to sing it in public; his version is totally out to lunch.
https://www.youtube.com/watch?v=yiIb0TZbLOg
let me post the words again;
Time is so old and love so brief
Love is pure gold and time a thief
Speak low when you speak love
Our summer's day withers away too soon, too soon
Speak low when you speak love
Our moment is swift like ships adrift
Swept apart too soon
Speak low, darling speak low
Love is a spark, lost in the dark too soon, too soon
I feel wherever I go that tomorrow is near
Tomorrow is here and always too soon
Time is so old and love so brief
Love is pure gold and time a thief
We're late, darling, we're late
The curtain descends, everything ends too soon, too soon
I wait, oh darling, I wait
Will you speak low to me,
Speak love to me
And soon
Time is so old and love so brief
Love is pure gold and time a thief
We're late, darling, we're late
The curtain descends, everything ends too soon, too soon
I wait, darling, I wait
Will you speak low to me,
Speak love to me
And soon
And soon
Speak low, speak low
Speak low, speak low
That is life; "Love is pure gold and time is a thief"; no time to waste.
"The curtain descends, everything ends too soon, too soon"; no matter how long it lasts, the curtain descends, and everything ends too soon.
The song itself speaks of "urgency"; the race against time. Carmen projects that urgency, while Ella's beautiful voice projects "romanticism"; this song is more about desperation to beat the clock; not a minute to waste, lets get it on and keep it going on until the curtain descends and everything ends.
This is the rare case where the instrumental wins; the urgency in the words are best projected by Sonny Clark and crew; plus the couple listening to the music who know the words and understand the urgency of the situation.
https://www.youtube.com/watch?v=ZDd_0FuenDc