And Jesus answered and said unto her, Martha, Martha, thou art careful and troubled about many things: but one thing is needful: and Mary hath chosen that good part, which shall not be taken away from her. – Luke 10:41,42
Let me say to those of you who can honestly declare that Christ is your sole confidence, it is possible for you to forget the necessity of sitting at His feet. You, dear brethren, are looking to His precious blood alone for your salvation, and His name is sweet to you, and you desire all things to be conformed to His will. So far it is well with you, for in this you have a measure of sitting at His feet; but so had Martha; she loved her Lord, and she knew His word, and she was a saved soul, for “Jesus loved Mary, and Martha, and Lazarus;” but you have not perhaps so much of this needful thing as Mary had, and as you ought to have. You have been very busy this week, and have been drifted from your moorings; you have not lived with your Lord in conscious fellowship; you have been full of care and empty of prayer; you have not committed your sorrows to your loving friend; you have blundered on in duty without asking His guidance or assistance, you have not maintained, in your Christian service, the communion of your spirit with the Well-Beloved, and, if such has been the case, let me say to you, and ask you, as you sit here this morning, to make a little stop in your Sunday-school teaching or your street preaching, or whatever else it is that you are so laudably engaged in, and say to yourself: “To me, as a worker, the one thing needful is to keep near my Lord, and I must not so suffer the watering of others to occupy me, as to neglect my own heart, lest I should have to say ‘woe is me, they made me keeper in the vineyards, but my own vineyard have I not kept.'” To the saints, as well as to others, the one thing needful is to sit at Jesus’ feet. We are to be always learners and lovers of Jesus. Departure from Him, and independence of Him, let them not once be named among you. It is weakness, sickness, sin, and sorrow for a believer to leave His Lord and become either his own leader or reliance. We are only safe while we remain humbly and gladly subservient to Him. ~ C.H. Spurgeon
https://www.blueletterbible.org/comm/spurgeon_charles/sermons/1015.cfm