Luke 19The picture holding the class motto was taken more than 60 years ago and the Bible quotation is from the old Authorized Version – that was before most of the Bible versions we have today came out. Other versions translate to say
12 He (Jesus) said therefore, A certain nobleman went into a far country to receive for himself a kingdom, and to return. 13 And he called his ten servants, and delivered them ten pounds, and said unto them, Occupy till I come. 14 But his citizens hated him, and sent a message after him, saying, We will not have this man to reign over us. 15 And it came to pass, that when he was returned, having received the kingdom, then he commanded these servants to be called unto him, to whom he had given the money, that he might know how much every man had gained by trading.
16 Then came the first, saying, Lord, thy pound hath gained ten pounds. 17 And he said unto him, Well, thou good servant: because thou hast been faithful in a very little, have thou authority over ten cities. 18 And the second came, saying, Lord, thy pound hath gained five pounds.
19 And he said likewise to him, Be thou also over five cities. 20 And another came, saying, Lord, behold, here is thy pound, which I have kept laid up in a napkin: 21 For I feared thee, because thou art an austere man: thou takest up that thou layedst not down, and reapest that thou didst not sow.
22 And he saith unto him, Out of thine own mouth will I judge thee, thou wicked servant. Thou knewest that I was an austere man, taking up that I laid not down, and reaping that I did not sow: 23 Wherefore then gavest not thou my money into the bank, that at my coming I might have required mine own with usury?
24 And he said unto them that stood by, Take from him the pound, and give it to him that hath ten pounds. 25 (And they said unto him, Lord, he hath ten pounds.) 26 For I say unto you, That unto every one which hath shall be given; and from him that hath not, even that he hath shall be taken away from him. 27 But those mine enemies, which would not that I should reign over them, bring hither, and slay them before me. 11 And as they heard these things, he added and spake a parable, because he was nigh to Jerusalem, and because they thought that the kingdom of God should immediately appear.
"Trade ye [herewith] till I come" and "Trade while I am coming." and "Engage in business until I come." and "Do business {with this} until I come {back." But the sense is clear that Jesus meant that while we wait for Him to come back we are to be good stewards doing whatever we do for Him.
Yes, He did say "Do this in memory of me until I come", but that was when He gave His followers the instructions about the last supper or Communion rite as we call it now, so He does want us to be looking for His return very expectantly. But He does not want us to be doing nothing while we are waiting. We are to be busy about the Master's business. A great difference from the post-modern feeling that we are entitled to do nothing.
Although He did not tell us the year or the day when He expected to come back, He could come back any time, even yet today, but in the meantime as we look and hope expectantly for Him, we are to be plying whatever trade we are in. The increase from that activity will determine our future reward.
Here is a link to an article that expresses this whole concept far better than I can say it:
http://affluentinvestor.com/2017/10/why-do-we-work/